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The Influence of the Closure of the East Paleo-Tethys Ocean on Southern South China:Evidences from Kinematics and^(40)Ar/^(39)Ar Geochronology of the Rongxian Ductile Shear Zone in Southeastern Guangxi 被引量:1
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作者 HUANG Wenqiang LI Saisai +5 位作者 XIN Liangwei FENG Zuohai ZHANG Hongrui GENG Jieli LIU Kun SHI Chunyan 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2024年第5期1125-1140,共16页
The Triassic was a crucial period in the tectonic evolution of the South China Block.Research on tectonic deformation during this period provides information on intracontinental orogenic mechanisms in South China.In t... The Triassic was a crucial period in the tectonic evolution of the South China Block.Research on tectonic deformation during this period provides information on intracontinental orogenic mechanisms in South China.In this study,alongside thermochronological analyses,we examine the macroscopic and microscopic structural features of the Rongxian ductile shear zone,located south of the Darongshan granite in the southeastern part of Guangxi Province,on the southern margin of South China.Sinistral shear is indicated by the characteristics of rotatedσ-type feldspar porphyroclasts,stretching lineations defined by elongated quartz grains and the orientations of quartz c-axes.LA-ICP-MS U-Pb dating of zircons from two samples of granitic mylonite and one of granite yielded ages of ca.256 Ma.Furthermore,two samples of granitic mylonite yield muscovite^(40)Ar/^(39)Ar plateau ages of 249-246 Ma.These results indicate that the Rongxian ductile shear zone resulted from Early Triassic deformation of the late Permian Darongshan granite.This deformation was likely related to the closure of the eastern Paleo-Tethys Ocean and the subsequent collision of the South China and Indochina blocks,during the early stage of the Indosinian orogeny. 展开更多
关键词 ductile shear zone ^(40)Ar/^(39)Ar geochronology TRIASSIC South china Block East Paleo-Tethys Ocean
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Innovation Transformation and Industry-Education Integration:A Study on the Integration Path of Guangxi Zhuang’s Intangible Cultural Heritage and Master of Arts Education in China
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作者 Danya Liu Yujun Sun 《Journal of Contemporary Educational Research》 2024年第4期86-91,共6页
This study focuses on the master of arts education in higher education institutions in Guangxi Zhuang Autonomous Region of China,explores the path of integrating Guangxi Zhuang’s intangible cultural heritage with the... This study focuses on the master of arts education in higher education institutions in Guangxi Zhuang Autonomous Region of China,explores the path of integrating Guangxi Zhuang’s intangible cultural heritage with the teaching of master of arts,and puts forward the teaching mode of“thinking guidance-autonomous judgement-program construction.”A theoretical model of innovative transformation of intangible cultural heritage is also summarized.Through the development of this study,it is expected to further enrich the practical teaching mechanism of master of arts education in Chinese universities and form a master of arts teaching model with strong local cultural characteristics.At the same time,the teaching reform based on the integration of Guangxi Zhuang’s intangible cultural heritage and master of arts education also has strong practical significance for promoting the inheritance and innovation of Chinese intangible cultural heritage,promoting the development of cultural and creative industries,and serving the economic and social development of Guangxi. 展开更多
关键词 Intangible cultural heritage Master of arts education Integration path guangxi Zhuang Autonomous Region Teaching mode
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Late Oligocene fossil acorns and nuts of Quercus section Cyclobalanopsis from the Nanning Basin,Guangxi,South China 被引量:1
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作者 Xiao-Yan Liu Han-Zhang Song +4 位作者 Xin-Kai Wu Jia-Rong Hu Wei-Ye Huang Cheng Quan Jian-Hua Jin 《Plant Diversity》 SCIE CAS CSCD 2023年第4期434-445,共12页
Quercus is the largest genus within the Fagaceae and has a rich fossil record.Most of the fossil material is attributed to the subgenus Quercus based on leaves,pollen or rarely acorns and nuts.Fossil records of Q.sect... Quercus is the largest genus within the Fagaceae and has a rich fossil record.Most of the fossil material is attributed to the subgenus Quercus based on leaves,pollen or rarely acorns and nuts.Fossil records of Q.section Cyclobalanopsis characterized by ring-cupped acorns are relatively few and especially those described based on nuts are scant.In this study,we described four new species of Quercus section Cyclobalanopsis based on mummified acorns and nuts:Q.paleodisciformis X.Y.Liu et J.H.Jin sp.nov.,Q.paleohui X.Y.Liu et J.H.Jin sp.nov.,Q.nanningensis X.Y.Liu et J.H.Jin sp.nov.and Q.yongningensis X.Y.Liu et J.H.Jin sp.nov.These species closely resemble the extant species Q.disciformis,Q.hui,Q.kerrii,and Q.dinghuensis.The occurrence of Q.section Cyclobalanopsis in the Oligocene stratum of Guangxi,South China,suggests that the section has diversified within its extant distribution center since the Oligocene.By combining records from other areas,we propose that the section first appeared in the middle Eocene of East Asia(Sino-Japan),has diversified in situ with a few elements scattering into West Asia and southern Europe since the Oligocene and Pliocene,respectively,and finally became restricted in East Asia since the Pleistocene.This indicates that the section originated and diversified in East Asia,before spreading into West Asia no later than the Oligocene and into southern Europe by the Pliocene.Subsequently it disappeared from South Europe and West Asia due to the appearance of the(summer dry)Mediterranean climate and widespread cooling during the Pleistocene. 展开更多
关键词 Quercus section Cyclobalanopsis Fossil acorn and nut Oligocene guangxi South china
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A New Labeonine Fish Species, Parasinilabeo longiventralis, from Eastern Guangxi, China (Teleostei: Cyprinidae) 被引量:3
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作者 黄艳飞 陈小勇 杨君兴 《Zoological Research》 CAS CSCD 北大核心 2007年第5期531-538,共8页
Parasinilabeo longiventralis, a new species is here described from He jiang basin, a tributary of the Zhujiang River (Pearl River) drainage in Fuchuan County, Guangxi Province, southern China. It can be distinguishe... Parasinilabeo longiventralis, a new species is here described from He jiang basin, a tributary of the Zhujiang River (Pearl River) drainage in Fuchuan County, Guangxi Province, southern China. It can be distinguished from all other congeners by having the following combination of characteristics: maxillary barbels length is 78.3-90.4% of rostral barbels length; pelvic-fin length is 83.7-89.4% of the distance between the ventral-fin origin and to the anal-fin origin; a longitudinal wide black stripe running along the posterior lateral line and irregular brown pigments on the sides of the body. 展开更多
关键词 Parasinilabeo Hejiang guangxi china
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Ore-forming material of Dachang tin deposit in Guangxi, China:Lead isotope evidence 被引量:3
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作者 成永生 彭程 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第11期3652-3659,共8页
For revealing the ore sources of the Dachang tin?polymetallic ore deposit, the lead isotopes were analyzed systematically by using the single minerals of sulphides, including pyrite, pyrrhotite, sphalerite, and galena... For revealing the ore sources of the Dachang tin?polymetallic ore deposit, the lead isotopes were analyzed systematically by using the single minerals of sulphides, including pyrite, pyrrhotite, sphalerite, and galena. Then, the mineral sources and their characteristics were discussed based on the classical lead isotope discriminating model. The results show that the lead isotope ratios of206Pb/204Pb,207Pb/204Pb, and208Pb/204Pb range from 17.478 to 18.638, 15.440 to 15.858, and 37.556 to 39.501, respectively. According to Zartman lead model, the ore lead contains the upper crust composition; however, the granite does not provide all ore leads, and other material sources exist. Obviously, the ore deposit belongs to the result of the combined effect of crust?mantle. The source rocks are characterized by a certain degree of similarity with the island arc material. Moreover, its distant origin in the upper and lower crusts may be related to the subduction island arc material or oceanic crust. The mantle-derived material may have a certain status in the source region. Meanwhile, based on the lead isotope three-dimensional topology projection vectors, the ore leads are concentrated in zoneA, which indicates the characteristics of Yangtze lead isotope province and a possible genetic relationship with Yangtze block. 展开更多
关键词 lead isotope ore source ore genesis Dachang tin-polymetallic deposit guangxi
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Rocky Land Desertification and its Driving Forces in the Karst Areas of Rural Guangxi,Southwest China 被引量:26
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作者 LIU Yansui WANG Jieyong DENG Xiangzheng 《Journal of Mountain Science》 SCIE CSCD 2008年第4期350-357,共8页
With a subtropical climate,Guangxi Zhuang Autonomous Region has a typical karst landscape.Rocky desertification has become a serious environmental issue due to its high vulnerability caused by the joint effect of natu... With a subtropical climate,Guangxi Zhuang Autonomous Region has a typical karst landscape.Rocky desertification has become a serious environmental issue due to its high vulnerability caused by the joint effect of natural settings and human activities,because of which its eco-environment has been deteriorated in recent years,and farmland has been disappearing sharply at the same time.This,in turn,has exacerbated the poverty level in the rural areas of the region.In this study,we monitored the spatial distribution of rocky land desertification and its temporal evolution using Landsat TM/ETM images of 1985,1995,2000 and 2005.We also analyzed the driving forces of the desertification and its expansion.Through constructing regression models by using all the relevant variables and considering the lagged effects as well as fixed effects,we quantified the exact role of different factors causing rocky land desertification in the study area with some new findings.The new findings in this study are greatly helpful for preserving,restoring and reconstructing the degraded mountain environment in Guangxi and other karst areas in Southwest China,and also for alleviating poverty in the rural areas in the future. 展开更多
关键词 Rocky land desertification karstmountain area rural poverty driving force guangxi Southwest china
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A New Species of Odorrana Inhabiting Complete Darkness in a Karst Cave in Guangxi, China 被引量:2
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作者 Yunming MO Weicai CHEN +2 位作者 Huaying WU Wei ZHANG Shichu ZHOU 《Asian Herpetological Research》 SCIE CSCD 2015年第1期11-17,共7页
A new species of the genusOdorrana is described from a completely dark karst cave of northeastern Guangxi, southern China. The new species,Odorranalipuensissp. nov., can be distinguished from its congeners by a combin... A new species of the genusOdorrana is described from a completely dark karst cave of northeastern Guangxi, southern China. The new species,Odorranalipuensissp. nov., can be distinguished from its congeners by a combination of the following characters: medium size (SVL: 40.7–47.7 mm in males, 51.1–55.4 mm in females);tips of all but ifrst ifnger expanded with circummarginal grooves; smooth, grass-green dorsum with irregular brown mottling; pineal body invisible; throat to upper abdomen with gray mottling; dorsal surfaces of limbs with brown bands; dorsolateral fold absent; tiny spinules on lateral body, temporal region, and anterior and posterior edge of tympanum;white nuptial pad present on ifnger I; males lacking vocal sacs; females having creamy yellow eggs, without black poles. Uncorrected sequence divergences betweenO.lipuensissp. nov. and all homologous 16S rRNA sequences ofOdorrana available on GenBank is equal to or greater than 4.9%. Currently, the new species is only known from the type locality. 展开更多
关键词 Odorrana lipuensis sp. nov. karst cave guangxi southern china
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Geochemistry of intrusive rock in Dachang tin-polymetallic ore field, Guangxi, China: Implications for petrogenesis and geodynamics 被引量:5
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作者 成永生 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第1期284-292,共9页
The major element, trace element and rare earth element(REE) of the intrusion rock from the Dachang ore field in Guangxi, China, were analyzed. The results show that the phenocryst(about 15%) and matrix(about 85%... The major element, trace element and rare earth element(REE) of the intrusion rock from the Dachang ore field in Guangxi, China, were analyzed. The results show that the phenocryst(about 15%) and matrix(about 85%) mainly consist of quartz, K-feldspar and plagioclase. The rock is composed of low content of Si and high content of Al2O3, low contents of Ca, Fe2O3, Na, TiO2, etc. The intrusion rock has the medium alkali content, attributing to K-rich type rock; and contains medium to low REE contents, of which light rare earth elements(LREEs) and heavy rare earth elements(HREEs) are highly fractionated, showing a weak negative Ce anomaly and a negative Eu anomaly. These rocks are enriched in LREE, and the large ion lithophytes elements(LILE) are rich in Rb, Sr, and U; the high-field-strength elements(Nb, Th, etc) are relatively depleted. The REE chondrite-normalized patterns are consistent with the overall, roughly indicating their similar characteristics, sources and evolution. The intrusion rock mainly formed during the collisional and within-plate periods. 展开更多
关键词 GEOCHEMISTRY PETROGENESIS tectonic setting magma evolution Dachang ore field guangxi
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The Silurian A-Type Granites in Northeastern Guangxi,South China Block:New Evidence of Transition from Compression to Post-orogenic Extension of the Kwangsian Orogen 被引量:4
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作者 JIA Xiaohui WANG Xiaodi +2 位作者 TANG Gongjian YANG Wenqiang NIU Zhijun 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第5期1913-1914,共2页
Objective More and more evidence suggests that the Kwangsian orogen is probably an intraplate orogen, which is one of the few examples of intraplate orogenesis worldwide. However, the initiation time, size and scope ... Objective More and more evidence suggests that the Kwangsian orogen is probably an intraplate orogen, which is one of the few examples of intraplate orogenesis worldwide. However, the initiation time, size and scope of the Kwangsian orogeny have not been determined yet. This study analyzed the Silurian A-type granites in northeastern Guangxi, South China Block, which may provide new evidence for the transition from compression to post- orogenic extension of the Kwangsian orogen. 展开更多
关键词 The Silurian A-Type Granites in Northeastern guangxi South china Block
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Survey of the use by birds of various karst wetlands in southwestern Guangxi, southern China
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作者 舒晓莲 陆舟 +3 位作者 杨岗 蒙渊君 李肇天 周放 《Chinese Birds》 CSCD 2013年第4期291-305,共15页
The limestone area located in southwestern Guangxi in the south of China is part of a global biodiversity hotspot. As an important habitat of this limestone region, karst wetlands provide birds with necessary water co... The limestone area located in southwestern Guangxi in the south of China is part of a global biodiversity hotspot. As an important habitat of this limestone region, karst wetlands provide birds with necessary water conditions for their survival and reproduction. From 2007 to 2012, bird surveys were conducted in natural wetlands(pools, streams, springs and seasonal flows) in 14 nature reserves and 18 reservoirs in the limestone area of southwestern Guangxi. A total of 365 bird species were recorded in field investigations, including 103 water-dependent birds mainly seen in wetlands. Among these 103 birds, 10 species are globally threatened and 5 species have been placed under national key protection. The birds were selective in their use of the various types of karst wetlands. The number of bird species was the highest in pools and springs, with 304 and 266 respectively, followed by streams with 131 species. Reservoirs are the main wintering habitat for the large Natatores and in the rainy season the importance of seasonal flows is paramount. Seasonal changes in the utilization of karst wetlands by birds were obvious; the number of bird species in the dry season was much higher than during the rainy season. Bird migration and seasonal flows are the main reasons for seasonal variation in the number of water-dependent birds. These natural karst wetlands ensure the drinking water supply for more than 80% of the water-independent birds in the dry season. These karst wetlands are the wintering ground and stopover area for 58 species of migrant birds. At present, threats to the birds in the karst wetlands consist of illegal hunting, habitat changes and eucalyptus plantations. Karst wetlands are important for protecting biodiversity. More attention ought to be directed to these wetlands and protection efforts enhanced. 展开更多
关键词 karst wetlands limestone area BIRDS southwestern guangxi conservation
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Devonian Bivalve Faunas, Life-habits, and Biodiversity Changes in Guangxi, South China
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作者 YAO Huazhou ZHANG Renjie +2 位作者 TU Bing YAN Daoping TANG Zhaoyang 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第1期378-379,共2页
Objective The Devonian bivalves are well developed, highly diversified and widely distributed in Guangxi. However, they have not been well studied previously, although several papers have dealt with it. Meanwhile, the... Objective The Devonian bivalves are well developed, highly diversified and widely distributed in Guangxi. However, they have not been well studied previously, although several papers have dealt with it. Meanwhile, the biodiversity change of bivalves which is one of the most important benthos during Devonian in South China has not been studied yet. The aim of present project is focused on the study of systematic palaeontology, the life-habits, of Devonian bivalves of Guangxi. 展开更多
关键词 Devonian Bivalve Faunas Life-habits and Biodiversity Changes in guangxi South china
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A New Blind Underground Species of the Genus Protocobitis (Cobitidae) from Guangxi, China 被引量:3
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作者 朱瑜 吕业坚 +1 位作者 杨君兴 张盛 《Zoological Research》 CAS CSCD 北大核心 2008年第4期452-454,共3页
A new species of the genus Protocobitis, was discovered in an underground water source (110m depth) located about 5km away from the county town of Wuming, Guangxi, China, in May 2006. The new species, Protocobitis p... A new species of the genus Protocobitis, was discovered in an underground water source (110m depth) located about 5km away from the county town of Wuming, Guangxi, China, in May 2006. The new species, Protocobitis polylepis sp. nov., is distinguished from the single congener by the following characteristics:1) light black pigmentation present vs. no pigmentation; 2) entire body covered with scales except for its head and abdomen vs. rudimentary scales present only along the midline of the body; 3) head length 24.1%-24.8% of SL vs. 19.8%-22.1% of SL; 4) body depth 16.2%-16.3% of SL vs. 11.5%-13.0% of SL; 5) Inner rostral barbel length 19.8%-21.0% of head length vs. 9.4%-11.8% of head length; outer rostral barbel length 28.6%-30.2 % of head length vs. 15.3%-21.8% of head length; maxillary barbell length 44.6%-46.0% of head length vs. 22.4%-31.8% of head length. 展开更多
关键词 Protocobitis New species guangxi
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Guangxi Beihai China Resources Cement Shoots at Putting into Production in May 2014
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《China's Refractories》 CAS 2013年第1期37-37,共1页
China Resources Cement in Hepu County of Beihai City is building two new type dry method cement production lines with two sets of 9 MW pure low temperatures residual heat power generating systems matched. Phase I of t... China Resources Cement in Hepu County of Beihai City is building two new type dry method cement production lines with two sets of 9 MW pure low temperatures residual heat power generating systems matched. Phase I of the project will be invested CNY I billion, and had been invested CNY 0.13 billion in 2012. China Resources Cement is shooting at putting the lines into production in May 2014. 展开更多
关键词 guangxi Beihai china Resources Cement Shoots at Putting into Production in May 2014 heat
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A Basal Titanosauriform from the Early Cretaceous of Guangxi, China 被引量:10
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作者 MO Jinyou WANG Wei +2 位作者 HUANG Zhitao HUANG Xin XU Xing 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2006年第4期486-489,共4页
Based on a partial postcranial skeleton collected from the Lower Cretaceous Napai Formation of Guangxi, China, we erect a new sauropod taxon, Fusuisaurus zhaoi gen. et sp. nov. The holotype specimen consists of the le... Based on a partial postcranial skeleton collected from the Lower Cretaceous Napai Formation of Guangxi, China, we erect a new sauropod taxon, Fusuisaurus zhaoi gen. et sp. nov. The holotype specimen consists of the left ilium, left pubis, anterior caudals, most of the dorsal ribs and distal end of the left femur. Fusuisaurus zhaoi is diagnosed by a unique combination of character states among the known sauropods. It displays several synapomorphies of Titanosauriformes but lacks many derived features seen in other titanosauriforms, suggesting that the new taxon represents the basalmost known titanosauriform and providing new evidence that Titanosauriformes originated from Asia. A size comparison suggests that Fusuisaurus zhaoi is among the largest Early Cretaceous sauropods, providing an important addition to the Early Cretaceous Chinese sauropod diversity. 展开更多
关键词 TITANOSAURIFORMES Early Cretaceous Fusui County guangxi china
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A New Eusauropod Dinosaur from the Lower Cretaceous of Guangxi Province,Southern China 被引量:5
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作者 MO Jinyou XU Xing Eric BUFFETAUT 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2010年第6期1328-1335,共8页
A new sauropod dinosaur,Liubangosaurus hei gen.et sp.nov.,is erected based on a specimen represented by five articulated middle-caudal dorsal vertebrae,which was discovered in the Lower Cretaceous Napai Formation of G... A new sauropod dinosaur,Liubangosaurus hei gen.et sp.nov.,is erected based on a specimen represented by five articulated middle-caudal dorsal vertebrae,which was discovered in the Lower Cretaceous Napai Formation of Guangxi Province,southern China.This new taxon is diagnosed by a unique combination of derived features:prezygapophysis closely contacts with parapophysis,with the prdl and prpl absent;presence of cavity on the dorsal surface of the diapophysis;neural spine very low,with its distal end level with that of diapophysis;distal end of the neural spine strongly expanded laterally to form a platform;marked fossa formed between the infradiapophyseal lamina and the parapophysis;broad,flat area of featureless bone on lateral surface of neural arch;vertically directed infradiapophyseal lamina expands or bifurcates ventrally to form a inverted "Y";highly positioned parapophyses large and tear-drop in shape.The discovery of this new taxon increases the diversity of sauropods in China during the Early Cretaceous. 展开更多
关键词 Eusauropoda Liubangosaurus hei Napai Formation Early Cretaceous guangxi china
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Triassic Transgressive-Regressive Sequences in Guizhou-Guangxi Region, South China 被引量:6
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作者 Wei Jiayong (Regional Geological Survey, Xi’an College of Geology, Xi ’an 710054) Liao Nengmao Yu Youyi (Regional Geological Surveying Institute of Guizhou, Guiyang 550005) 《Journal of Earth Science》 SCIE CAS CSCD 1996年第1期112-121,共10页
Seven third-order transgressive-regressive sequences are recognized in the Early Triassic -Early Carnian stratigraghc succession of Guizhou-Guangxi region, South China. Based on currently available ages by the correla... Seven third-order transgressive-regressive sequences are recognized in the Early Triassic -Early Carnian stratigraghc succession of Guizhou-Guangxi region, South China. Based on currently available ages by the correlation of conodont ammonites and bivalve faunas, these sequences range approximately from 1.0 Ma to 5.6 Ma, with the average of 3 Ma. They occur largely in the Griesbachian-Dienerian, Smithian,uppermost Smithian-lowermost Anisian, Lower Anisian, Middle Anisian, Upper Anisian-Upper Ladinian and the uppermost Ladinian-Lower Carnian respectively, and can be grouped into three second-order transgressive-regressive supersequences. A relative sea level curve is established from the sequence stratigraghic analysis. Transgressive-regressive sequences,bounded by transgressive surfaces and the correlatable unconformities, are real unconformity-bounded units of lower rank. Each sequence comprises transgressive, highstand and regressive systems tracts, and can be easily correlated with the depositional sequence. 展开更多
关键词 TRIASSIC transgressive-regressive sequence relative sea level change GUIZHOU guangxi.
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Dinoflagellate cysts in recent marine sediment from Guangxi, China 被引量:4
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作者 Haifeng Gu, Qi Fang, Jun Sun, Dongzhao Lan, Feng Cai, Zhiyong Gao Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005,China. E-mail:Haifenggu@yahoo. comCollege of Marine Life Science, Ocean University of China, Qingdao 266003, China. 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2003年第3期407-419,共13页
Total of 33 species of dinoflagellate cysts were discovered from surface sediment in the sea region of Guangxi, among them 12 cyst types (Diplopsalopsis sp. 1, D. sp. 2, D. sp. 3, Cochlodinium sp., Protoperidinium sp.... Total of 33 species of dinoflagellate cysts were discovered from surface sediment in the sea region of Guangxi, among them 12 cyst types (Diplopsalopsis sp. 1, D. sp. 2, D. sp. 3, Cochlodinium sp., Protoperidinium sp. 1, P. sp. 2, P. compressum, Scrippsiella sp. 1, S. sp. 2, Alexandrium sp. 1, A. sp. 2, A. sp. 3) were first reported from the South China Sea. And one cyst type (Cochlodinium sp.) was first reported in the world. Scrippsiella trochoidea is the dominant species in this area, accounting for 45% of all the cysts. There are 2 cysts of toxic dinoflagellate (Alexandrium tamarensis and Gymnodinium catenatum) But there is no relationship between cyst number and grain size distribution. 展开更多
关键词 dinoflagellate cysts surface sediment guangxi
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A Megatheropod Tooth from the Early Cretaceous of Fusui, Guangxi, Southern China 被引量:3
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作者 MO Jinyou HUANG Chaolin +1 位作者 XIE Shaowen Buffetaut ERIC 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2014年第1期6-12,共7页
A nearly complete right maxillary or left dentary tooth(NHMG 10858) from the Lower Cretaceous Xinlong Formation of the Napai Basin, Fusui County, Guangxi, southern China, is described. The tooth is large in size, wi... A nearly complete right maxillary or left dentary tooth(NHMG 10858) from the Lower Cretaceous Xinlong Formation of the Napai Basin, Fusui County, Guangxi, southern China, is described. The tooth is large in size, with a CBL of 37 mm. Given the geological age and its crown morphology, including the size, it is most likely that the tooth belongs to a carcharodontosaurid. The recovered specimen represents one of the largest theropod teeth hitherto reported from the Early Cretaceous of Asia. 展开更多
关键词 TOOTH THEROPODA Xinlong Formation Early Cretaceous Napai Basin guangxi
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Buxus Leaves from the Oligocene of Guangxi, China and Their Biogeographical Significance 被引量:2
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作者 MA Fujun WANG Qiujun +4 位作者 DONG Junling YANG Yi WANG Wenjia YAN Defei SUN Bainian 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2015年第5期1453-1469,共17页
The present paper reports two new species of Buxus from the Oligocene Ningming Formation of Guangxi, South China, on the basis of several compressed fossil leaves.Buxus ningmingensis sp.nov.is characterized by an elli... The present paper reports two new species of Buxus from the Oligocene Ningming Formation of Guangxi, South China, on the basis of several compressed fossil leaves.Buxus ningmingensis sp.nov.is characterized by an elliptic to ovate shape; pinnate venation with marginal secondary, long hairs on the adaxial side of the midvein base; and amphistomatic, anomocytic stomata with a prominent outer ring.All of these characteristics suggest a closest affinity to the living Buxus microphylla subsp.sinica.Another new species identified as Buxus preaustro-yunnanensis sp.nov.is characterized by the diagnostic formation of its admedially branched tertiaries, the trunks of which are often strongly thickened by sclereides.This species is most similar to the extant Buxus austroyunnanensis.The co-occurrence of Buxus ningmingensis sp.nov.and Buxus preaustro-yunnanensis sp.nov.suggests that these two Buxus lived during the Oligocene under a warm, tropical to subtropical climate, similar to the current climate of Ningming.Our findings provide the earliest fossil evidence of Buxus leaves with detailed illustrations of leaf architectural and cuticular features.The occurrence of these two species indicates that Buxus began to diversify in Guangxi no later than the Oligocene. 展开更多
关键词 Buxus DIVERSIFICATION PALEOCLIMATE OLIGOCENE guangxi
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Preliminary Investigation on the Main Fungal Diseases of Sugarcane in Guangxi Province of China 被引量:3
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作者 Wei Jinju Deng Zhanyun +4 位作者 Huang Chenghua Huang Weihua Yan Meixin Liu Haibin Tang Hongqin 《Plant Diseases and Pests》 CAS 2013年第1期28-32,共5页
[ Objective ] The purpose was to understand species and occurrence status of major fugal diseases in sugarcane cultivation areas of Guangxi in China, so as to provide scientific references for integrated control again... [ Objective ] The purpose was to understand species and occurrence status of major fugal diseases in sugarcane cultivation areas of Guangxi in China, so as to provide scientific references for integrated control against sugarcane diseases. [ Method] Species and occurrence degrees of major fugal diseases in sugarcane cultivation areas of Guangxi were investigated through randomized surveys, farmer interviews, literature references and location investigations from 2009 to 2011. Diseased sugarcane samples were collected and their species were identified through pathogen isolated culture and other relevant methods. [ Result] Thirteen spe- cies of fungal diseases were identified in the survey, including pineapple disease [ Thielaviopsis paradoxa ( de Seynes ) V. Hohnel ], smut ( Ustilago scitaminea Sydow), top rot disease (Fusarium moniliforme Sheldon), rust (Puccinia melanocephala H. & P. Syd. ), leaf scald disease (Stagonospora sacchari Lo et Ling), red rot disease (Colletotrichumfalcatum Went), zonate spot disease (Phyllosticta saccharicola P. Henn. ), leaf red spot disease [ Pellicularia sasakii (Shirai) Ito], white rash disease (Elsinoe sacchari L. ), eye spot [Helminthosporium sacchari (Breda de Haan) Butler], yellow spot [Mycovellosiella koepkei (kruger) Deighton], brown stripe [Bipolaris stenospilum (Drechs.) Shoem. ] and brown spot (Cercospora longipes Butler). Smut, rust, top rot, and pineapple disease were the most rampantly detrimental to quality and yield of sugarcane. [ Conclusion] Smut is the most serious sugarcane disease; it is urgent to breed sugarcane varieties with high resistance and excellent agronomic characters to replace current sugarcane varieties susceptible to diseases. 展开更多
关键词 SUGARCANE Fungal disease SYMPTOM guangxi
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