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1.
三峡库区中侏罗世植物化石及所指示的气候环境 总被引：4，自引：0，他引：4
报道了陈家湾组的植物化石８属１１种（包括１新种）即Ｎｅｏｃａｌａｍｉｔｅｓｓｐ．１,Ｎ．ｓｐ２．Ｐｈｌｅｂｏｔｅｎｓｏｆ．ｐｏｌｙｐｏｄｉｏｄｉｅｓＢｒｏｎｇｎｉａｒｔ,Ｔｈａｕｍａｔｏｐｔｅｒｉｓ,ｓｐ．,Ｃｏｎｉｏｐｔｅｒｉｓｓｉｎｐｌｅｘ（Ｌ．ｅｔＨ．）,ＣｌａｄｏｐｈｌｅｂｉｓｓｈａｎｓｉｅｎｓｉｓＳｚｅ,Ｃ．ｘｉｅｔａｎｅｎｓｉｓＭｅｎｇ（ｓｐ．ｎｏｖ．）Ａｎｏｍｏｚａｍｉｔｅｓｇｒａｃ 相似文献
2.
Shi Xiaoying 《中国地质大学学报(英文版)》1996,(2)
３５Ｍａ－ＡｎＩｍｐｏｒｔａｎｔＮａｔｕｒａｌＰｅｒｉｏｄｉｃｉｔｙｉｎＧｅｏｌｏｇｉｃａｌＨｉｓｔｏｒｙ：ＣｏｎｃｅｐｔｏｆＮａｔｕｒａｌ Ｃｒｉｓｉｓ ａｎｄ Ｉｔｓ Ｐｏｓｓｉｂｌｅ ＣａｕｓｅＳｈｉＸｉａｏｙｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏ?.. 相似文献
3.
周口店地区第四纪哺乳动物群的演化与环境变迁探讨 总被引：2，自引：0，他引：2
讨论了Ａｌｉｌｅｐｕｓａｎｎｅｃｔｅｎｓ、ＨｙｐｏｌａｇｕｓｂｒａｃｈｙｐｕｓＬｅｐｕｓｓｐ．、Ｓｃｉｕｒｏｔａｍｉａｓｐｒａｅｃｏｘ、ＡｌｌｏｃｒｉｃｅｔｕｓｔｅｉｌｈａｒｄｉＣｒｉｃｅｔｉｎｕｓｖａｒｉａｎｓ、Ｈｙｐｅｒａｃｒｉｕｓｙｅｎｓｈａｎｅｎｓｉｓ、Ａｌｌｏｐｈａｉｏｍｙｓｃｆ．ｐｌｉｏｃａｅｎｉｃｕｓ、Ｐｒｏｅｄｒｏｍｙｓｃｆ．ｂｅｄｆｏｒｄｉ、Ｃｈａｒｄｉｎｏｍｙｓｎｉｈｅｗａｎｉｃｕｓ、Ｍｕｓｃｆ．ｍｕｓｃｕｌｕｓ和Ａｐｏｄｅｍｕｓｄｏｍｉｎａｎｓ的地史分布。根据哺乳动物群的分析与对比，得出第１８地点为早更新世早期，第１２地点、东洞地点为早更新世中期，第９地点、西洞地点为早更新世晚期，第１３地点为早更新世末期至中更新世初期，第１、２、５、６、１１、１０、２１、２３及上店洞地点为中更新世，新洞为中更新世晚期至晚更新世早期，东岭子洞为晚更新世，山顶洞为晚更新世晚期。还讨论了周口店地区一些主要第四纪哺乳动物群的生态类型特点，第四纪的气候波动及生态环境变迁。 相似文献
4.
秦岭核桃坝石炭系深水相遗迹化石,沉积环境和古地理分析 总被引：2，自引：0，他引：2
研究剖面位于陕西凤县核桃坝，构造上属秦岭造山带的商丹缝合带。核桃坝剖面下部为浅海陆棚相粉砂岩、泥灰岩和灰岩；中、上部以重力流沉积为主。在中部浊积岩中产遗迹化石：Ｎｅｒｅｉｔｅｓ ｆｅｎｇｘｉａｎｅｎｓｉｓ ｉｃｈｎｏｓｐ．ｎｏｖ．，Ａｃａｎｔｈｏｒｈａｐｈｅ ｃｆ． Ａ． ｉｎｃｅｒｔａ Ｋｓｉａｚｋｉｅｗｉｃｚ，Ｃｈｏｎｄｒｉｔｅｓ ｉｃｈｎｏｓｐ．，Ｐｌａｎｏｌｉｔｅｓ ｉｃｈｎｏｓｐ．等。其 相似文献
5.
河南酮柏地区三叠纪早期放射虫动物群及其地质意义 总被引：12，自引：3，他引：12
本文描述了采自河南南部桐柏地区蔡家凹大理岩中的放射虫化石，共计７属８种（其中１新属２新种），包括Ａｒｃｈａｅｏｓｐｏｎｇｏｐｒｕｎｕｍ ｃｏｍｐａｃｔｕｍ Ｎａｋａｓｅｋｏ ｅｔ Ｎｉｓｈｉｍｕｒａ，Ｙａｎｇｉａ ｃｈｉｎｅｎｓｉｓ Ｆｅｎｇ，Ｓｈｅｎｇｉａ ｙｉｎｉ（Ｆｅｎｇ），Ｃｅｎｏｓｐｈａｅｒａ ｓｐ．，Ｔｒｉａｓｓｏｃａｍｐｅ？ｓｐ．，Ｐａｃｔａｒｅｎｔｉｎｉａｓｐ．，Ｔｒｉａｓｓｏｎｍ 相似文献
6.
1ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅＡｉｌａｏｓｈａｎ ＪｉｎｓｈａｊｉａｎｇＣｅｎｏｚｏｉｃａｌｋａｌｉ ｒｉｃｈｐｏｔａｓｓｉｃｍａｇｍａｔｉｃｂｅｌｔｅｘｔｅｎｄｓｏｖｅｒａｄｉｓｔａｎｃｅｏｆ370 0ｋｍｉｎｔｈｅＮＷ ＮＷＷｄｉｒｅｃｔｉｏｎ (ＺｈａｎｇＹｕｑｕａｎａｎｄＸｉｅＹｉｎｇｗｅｎ ,1 997) .Ｓｔｕｄｉｅｓｏｆｐｅｔｒｏｌｏｇｙａｎｄｇｅｏｃｈｅｍｉｓｔｒｙｉｎｄｉｃａｔｅｔｈａｔｔｈｅｉｎｔｅｒｍｅｄｉａｔｅｔｏｉｎｔｅｒｍｅｄｉａｔｅ ａｃｉｄａｌｋａｌｉ ｒｉｃｈｐｏｒｐｈｙｒｙｇｒ… 相似文献
7.
豫西前寒武纪汝阳群遗迹化石 总被引：18，自引：3，他引：18
本文研究的遗迹化石：Ｒｕｙａｎｇｉｃｈｎｕｓ ｌｏｙｕｅｎｓｉｓ ｉｃｈｎｏｇｅｎ，ｅｔ ｉｃｈｎｏｓｐ．ｎｏｖ．，Ｔｏｒｒｏｗａｎｇｅａ ｒｏｓｅｉ ｗｅｂｂｙ，Ｃｈａｎｇｃｈｅｎｇｉａ ｉｃｈｎｏｓｐ．，Ｓｑｕａｍｏｄｉｃｔ ｙｏｎ（？）ｉｃｈｎｏｓｐ．等发现于河南西部鲁山县和汝阳县的汝阳群云梦山组和北大尖组。根据同位素年龄值，微古植物和叠层石资料，产遗迹化石的汝阳群应相当于中元古代，可以和蓟 相似文献
8.
《Scientia Geologica Sinica》1997,(2)
ＣＯＡＬＰＯＲＰＨＹＲＩＮＳＣＯＡＬＰＯＲＰＨＹＲＩＮＳＬｕｏｆｕＬｉｕＵｎｉｖｅｒｓｉｔｙｏｆＰｅｔｒｏｌｅｕｍ，Ｂｅｉｊｉｎｇ１０２２００Ｇ．ＥｇｌｉｎｔｏｎＯｒｇａｎｉｃＧｅｏｃｈｅｍｉｓｔｒｙＵｎｉｔ，ＵｎｉｖｅｒｓｉｔｙｏｆＢｒｉｓｔｏｌ，... 相似文献
9.
《中国地质大学学报(英文版)》1995,(1)
ＩＮＦＯＲＭＡＴＩＯＮ ＦＯＲ ＣＯＮＴＲＩＢＵＴＯＲＳ￥／／ＪｏｕｒｎａｌｏｆＣｈｉｎａＵｎｉｖｅｒｓｉｔｙｏｆＧｅｏｓｄｅｎｏｃｓ（ＩＳＳＮ１１０２－０７０５ＣＮ４２－１２７９／ｐ）ｉｓａｇｅｏｌｏｇｉｃａｌｍａｇａｚｉｎｃｐｕｂｌｉｓｈｅｄｂｉ... 相似文献
10.
桐柏蔡家凹岩片内寒武纪高肌虫的发现及其地质意义 总被引：5，自引：0，他引：5
本文描述了河南桐柏西北部蔡家凹大理岩岩丰富的高肌虫化石Ｔｏｎｇｂａｉｅｌｌａ ｘｉｎｊｉｅｎｓｉｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．、Ｘｉａｎｚｈｅｅｌｌａ ｈｅｎａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．和Ｍｏｎｏｎｏｔｅｌｌａ ｃｆ．ｃｈｕａｎｓｈａｎｅｎｓｉｓ Ｈｕｏ ｅｔＳｈｕ及小壳化石Ｃｏｎｏｔｈｅｃａ ｓｐ．共有４属４种。据此确定含化石地层为寒武系,属浅海沉积环境。该生物群的发现为解决桐柏大别造山带与 相似文献
11.
Gilles Serge Odin 《Comptes Rendus Geoscience》2002,334(6):409-414
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414. 相似文献
12.
Inter-regional correlation of transgressions and regressions in the Cretaceous period 总被引：1，自引：0，他引：1
T. Matsumoto 《Cretaceous Research》1980,1(4):359-373
Well investigated platforms have been selected in each continent, and the history of Cretaceous transgressions and regressions there is concisely reviewed from the available evidence. The factual records have been summarized into a diagram and the timing of the events correlated between distant as well as adjoining areas.On a global scale, major transgressions were stepwise enlarged in space and time from the Neocomian, via Aptian-Albian, to the Late Cretaceous, and the post-Cretaceous regression was very remarkable. Minor cycles of transgression-regression were not always synchronous between different areas. Some of them were, however, nearly synchronous between the areas facing the same ocean.Tectono-eustasy may have been the main cause of the phenomena of transgression-regression, but certain kinds of other tectonic movements which affected even the so-called stable platforms were also responsible for the phenomena. The combined effects of various causes may have been unusual in the Cretaceous, since it was a period of global tectonic activity. The slowing down of this activity followed by readjustments may have been the cause of the global regression at the end of the Cretaceous. 相似文献
13.
The Afyon stratovolcano exhibits lamprophyric rocks, emplaced as hydrovolcanic products, aphanitic lava flows and dyke intrusions, during the final stages of volcanic activity. Most of the Afyon volcanics belong to the silica-saturated alkaline suite, as potassic trachyandesites and trachytes, while the products of the latest activity are lamproitic lamprophyres (jumillite, orendite, verite, fitztroyite) and alkaline lamprophyres (campto-sannaite, sannaite, hyalo-monchiquite, analcime–monchiquite). Afyon lamprophyres exhibit LILE and Zr enrichments, related to mantle metasomatism. 相似文献
14.
正20140751 Guo Xincheng(Geological Party,BGMRED of Xinjiang,Changji 831100,China);Zheng Yuzhuang Determination and Geological Significance of the Mesoarchean Craton in Western Kunlun Mountains,Xinjiang,China(Geological Review,ISSN0371-5736,CN11-1952/P,59(3),2013,p.401-412,8 相似文献
15.
正20141058 Chen Ling(Key Laboratory of Mathematical Geology of Sichuan Province,Chengdu University of Technology,Chengdu610059,China);Guo Ke Study of Geochemical Ore-Forming Anomaly Identification Based on the Theory of Blind Source Separation(Geosci- 相似文献
16.
正20141334 Chen Kun(Institute of Geophysics,China Earthquake Administration,Beijing100081,China);Yu Yanxiang Shakemap of Peak Ground Acceleration with Bias Correction for the Lushan,Sichuan Earthquake on April20,2013(Seismology and Geology,ISSN0253-4967,CN11-2192/P,35(3),2013,p.627-633,2 illus.,1 table,9 refs.)Key words:great earthquakes,Sichuan Province 相似文献
17.
正20141624 Cai Xiongfei(Key Laboratory of Geobiology and Environmental Geology,Ministry of Education,China University of Geosciences,Wuhan 430074,China);Yang Jie A Restudy of the Upper Sinian Zhengmuguan and Tuerkeng Formations in the Helan Mountains(Journal of Stratigraphy,ISSN0253-4959CN32-1187/P,37(3),2013,p.377-386,5 illus.,2 tables,10 refs.) 相似文献
18.
正20142263Lü Shaojun(Geological Survey of Jiangxi Province,Nanchang 330030,China)Early-Middle Permian Biostratigraphical Characteristics in Qiangduo Area,Tibet(Resources SurveyEnvironment,ISSN1671-4814,CN32-1640/N,34(4),2013,p.221-227,2illus.,2tables,22refs.)Key words:biostratigraphy,Lower Permian,Middle Permian,Tibet 相似文献
19.
正20142560Hu Hongxia(Regional Geological and Mineral Resources Survey of Jilin Province,Changchun 130022,China);Dai Lixia Application of GIS Map Projection Transformation in Geological Work(Jilin Geology,ISSN1001-2427,CN22-1099/P,32(4),2013,p.160-163,4illus.,2refs.) 相似文献
20.
正20140692 Duo Tianhui(No.402 Geological Team,Exploration of Geology and Mineral Resources of Sichuan Authority,Chengdu611730,China);Wang Yongli Computer Simulation of Neptunium Existing Forms in the Groundwater(Computing Techniques for Geophysical and Geochemical Exploration,ISSN1001-1749,CN51-1242/P,35(3), 相似文献