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Discussion on the Cenozoic and Its chronology in the Weihe River basin(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2004年第04期
Page:
1-5
Research Field:
Publishing date:

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Title:
Discussion on the Cenozoic and Its chronology in the Weihe River basin
Author(s):
LIU Hu-junXUE Xiang-xu
Department of Geology , Nor thwest University , X i' an 710069 , China
Keywords:
Cenozoicchronology the Weihe River basin Shaanxi
PACS:
P534.6
DOI:
-
Abstract:
The Weihe River basin lies in the norther n margin of the Qinling orogenic belt, and the Cenozoic in the basin is v ery developed .The previous researchers have set up the stratigr aphic system in this basin.With accumulation of the g eolo gical results, the o riginal stratigraphic system needs to be rear ranged.Based o n the previous studies , according to the updated materials and datum of studies about the g lobal change , this paper has reconsidered the Cenozoic in the Weihe River basin , and the chronology of some strata is stadied.The authors considered that the Honghe Formation formed during the Middle -Late Eocene Epoch of the Paleocene Perio d, the Bailuyuan Formation formed during the Late Eocene Epoch to the Early Oligocene Epoch of the Paleocene Period , the Lengshuig ou Fo rma tion formed during the Early Miocene Epoch of the Neocene Period, the Koujiacun Fo rma tion formed during the Middle Miocene Epoch of the Neocene Period , and the Bahe Fo rmation formed during the Late Miocene Epoch of the Neocene Period.The co ntact relationship between the Lantian Formation and Youhe Fo rma tion is not up and dow n, which implies that they may be formed in different sedimentary environments a t the same time during the g eological histo ry .The geological age of the top part of Sanmen Formation varies in different reg ions , which states that the v anishing time of the ancient Sanmen Lake was different in studied area .As the Lantian Fo rma tion and the Youhe Formation formed, the topog raphic and geomo rphic pattern was divided into protrusions and depressions, the eolian deposition piled up on the protrusions, and the lacustrine deposition heaped up in the depressions .This geomorphic patter n probably sustained during 7.3 Ma B .P .to 0 .15 Ma B .P ., One of the impo rtant geological events is that the ancient Sanmen Lake and the eolian deposition of the Loess Plateau coexisted during the Latest period of the Late Miocene Epoch of the Neocene Period to 0 .15 Ma B.P.in studied area , it reflects the regional tectonic Movement in Weihe River basin.

References:

[1] 孙肇才 .汾渭地堑地 质构造特 征及成因 机制[A] .见 :朱夏 . 中国中 新 生 代盆 地 构 造 和 演化[C] .北京 :科 学 出 版 社 , 1983 .129 ~ 141 .
[2] 张玉萍 , 黄万波 , 汤 英俊 , 等 .陕 西蓝田地 区新生界[M] .北 京 :科学出版社 , 1978 .1 ~ 64 .
[3] 薛 祥煦 , 张云翔 , 毕 延 , 等 .秦岭东 段山间盆地的发 育及自然 环境变迁[M] .北京 :地质出版社 , 1996 .49 ~ 52 .
[4] 童永生 , 王景文 .河南潭头 、卢氏和灵宝盆地 上白垩 —下第三 系的划分[J] .古脊椎动物与古人类 , 1980 , 181):21 ~ 28 .
[5] 施 雅凤 , 李吉均 , 李 炳元 , 等 .青藏 高原晚新生代隆 升与环境 变化[M] .广州 :广东科技出版社 , 1998 .19 ~ 27 , 36 ~ 40 , 61 , 150 ~ 151 , 451 .
[6] 李传夔 , 吴文裕 , 邱铸鼎 .中国陆相新第三系的初 步划分和对 比[J] .古脊椎动物学报 , 1984 , 223):163 ~ 179 .
[7] 薛祥煦 , 张云翔 , 岳乐平 .陕西府谷老高川三趾马 动物群的发 现及其时代分期[J] .科学通报 , 1995 , 405):447 ~ 449 .
[8] 赵景波 .西安 、山西保德第 三纪晚期红 土的研究[J] .沉积学 报 , 1989 , 73):113~ 120 .
[9] 安 芷生 , 孙东怀 , 陈 明扬 , 等 .黄土 高原红粘土序列 与晚第三 纪的气候事件[J] .第四纪研究 , 2000 , 205):435 ~ 446 .
[10] Cande S C , Kent D V.Revised calib ration of geomagnetic polarity time scale for the late C retaceous and Cenozoi c[J] .Journal of Geophysical Research , 1995 , 1004):6093 ~ 6095 .
[11] 薛祥煦 .陕西渭南一早 更新世 哺乳动 物群及 其层位[J] .古 脊椎动物与古人类, 1981 , 191):35 ~ 44 .
[12] 张云翔 , 孙东怀, 安芷生, 等 .甘肃灵台上新世晚期红粘土中的 哺乳动物化石[J] .古脊椎动物学报 , 1999 , 373):190 ~ 199 .
[13] 岳乐平 , 薛祥煦 .中国 黄土 古地 磁学[M] .北 京 :地质 出版 社 , 1996 .55 ~ 70 .
[14] 岳乐平 , 张云翔 , 王建其 , 等 .中国北方陆相沉积 5 .3 Ma 磁性 地层序列[J] .地质论评, 1999 , 454):444 ~ 448 .
[15] 黄万波 , 孙翠玉 .三门峡 水库第四 纪地质会 议野外旅 行指南 [A] .见 :中国第四纪地质专业委员会 .三门峡第 四纪地质会 议文集[C] .北京 :科学出版社 , 1959 .141 ~ 146 .
[16] 孙建中 , 赵 景波 .黄 土高原 第四纪[M] .北京 :科学出 版社 , 1991 .14 ~ 15 .
[17] 张宗祜 , 邵时雄 , 余飞 .渭河地区第四纪下限 的研究[A] .见 : 中国地质学会 , 中国 第四纪冰 川与第四 纪地质 专业委 员会 . 第四纪冰川与第四纪地 质论文 集第 七集)[C] .北京 :地质 出版社 , 1991 .43 ~ 49 . 4 地球科学与环境学报  第 26 卷
[18] 王书兵 , 蒋复 初 , 吴锡浩 , 等 .三门峡地区三门 群地层时代研 究[J] .地质力学学报 , 1999 , 54):57 ~ 65 .

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Last Update: 2004-12-20