期刊文献+

关于时间、沉积与地层学的几点思考 被引量:7

Thinking on time,sedimentation and stratigraphy
下载PDF
导出
摘要 地层学与其他自然科学中的时间概念可区分为存在的时间和演化的时间两类,地层学就是依据这两类时间概念和标志构建地质学的时间坐标。选定百万年为地质学的基本时间单位在某种意义上来说是地层学的武断和盲从,它在一定程度上降低了地质学对精确性、严谨性的不懈追求。地层学完全能够在"存在的时间"和"演化的时间"中,依据自然规律和需要构建地质学的时间单位谱,如天、月、年以及岁差、斜度、偏心率周期等,建立与人类社会接轨的时间单位和地质学时间坐标。地层的形成作用可以区分为垂向加积和侧向加积作用以及它们的复合类型——生物加积和热侵位加积作用。由垂向加积作用形成的地层序列遵循地层学三定律(上新下老;水平叠置;侧向连续),岩性界面通常与等时面平行;由侧向加积作用形成的地层序列遵循瓦尔特相律和岩石地层单位穿时的普遍性原理,岩性界面通常与等时面斜交;而由生物加积和岩浆侵位加积作用形成的地层,其岩性界面与等时面的关系需要具体情况具体分析。 Time may be divided into both the being time and evolutional time in terms of stratigraphy and other natural sciences. The geological time scale is constructed by stratigrapher on the basis of above both times. We consider that the selection of Million years (Ma) as basic time unit for geology is somewhat arbitrary and following like sheep, which in a way has lowered geological pursuing for accuracy and preciseness. We think that stratigrapher can completely establish the time unit spectrum bridging million years to day and year for geology based on the both being and evolutional times, such as day, month, year, and precession, obliquity and eccentricity periods. Stratal sedimentation can be summarized as vertical and lateral accumulations and their compounds^-bioaccumulation and magmatic replacement accumulation. Strata formed by vertical accumulation obey the stratigraphical laws including the superposition, original horizontality and lateral continuity. Lithological boundary in strata formed by vertical accumulation usually parallels with synchroneity plane. Strata formed by lateral accumulation follow Walther's law and ubiquity principle of diachronism. Litbological boundary in strata formed by lateral accumulation usually does not parallel with synchroneity plane. The relationships between synchroneity plane and lithological boundary in strata formed by both bioaccumulation and magmatic replacement accumulation need particular analysis in each specific case.
出处 《地学前缘》 EI CAS CSCD 北大核心 2014年第2期27-35,共9页 Earth Science Frontiers
基金 国家自然科学基金项目(41290260 41072252) 高等学校博士学科点专项科研基金项目(20120145110012)
关键词 时间 沉积作用 地层学 垂向加积 侧向加积 生物加积 岩浆侵位加积 地层叠覆律 瓦尔特相律 岩石地层单位穿时普遍性原理 time sedimentation stratigraphy vertical accumulation lateral accumulation bioaccumulation mag-matic replacement accumulation superposition law of strata Walther's law ubiquity principle of diachronism
  • 相关文献

参考文献31

  • 1Holland C H. Some aspects of time[J]. Newsletters on Stra- tigraphy, 1986, 15(3): 172 176.
  • 2曾国屏.普利高津(戈金)对时间的追问[N].科学时报,2003-06-13.
  • 3王鸿祯.地层学学科发展的回顾[M]//王鸿祯.中国地质学科发展的回顾.武汉:中国地质大学出版社,1995:59~63.
  • 4Grabau A W. Principle of Stratigraphy[M]. New York.. A. G. Seiler and Company, 1913.. 1-1185.
  • 5Dunbar C O, Rodgers J. Principle of Stratigraphy[M]. New York.. John Wiley and Sons, 1957: 1-356.
  • 6Hedberg H D. International Stratigraphic Guide: A Guide to Stratigraphic Classification, Terminology and Proeedure[M]. New York= John Wiley and Sons, 1976: 1-200.
  • 7Brassell S C, Eglinton G, Marlowe I T, et al. Molecular stratigraphy A new tool for climatic assessment[J]. Nature, 1986, 320: 129-133.
  • 8Haq B U, Hardenbol J, Vail P R. Chronology of fluctuating sea levels since the Triassic[J]. Science, 1987, 235: 1186-1167.
  • 9陈代钊.碳酸盐旋回地层研究现状[J].岩相古地理,1997,17(1):64-70. 被引量:6
  • 10Salvador A. International Stratigraphic Guide: A Guide to Stratigraphie Classification, Terminology and Procedure[M]. New York: John Wiley and Sons, 1994 1 214.

二级参考文献35

共引文献46

同被引文献136

引证文献7

二级引证文献53

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部