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| 1 | 黔北镇远牛蹄塘组黑色页岩沉积环境与有机质富集关系显示文摘通过矿物组分、主量元素、微量元素、碳氧同位素等特征,分析了黔北地区镇远县ZX井牛蹄塘组黑色页岩的岩相类型和不同岩相页岩的沉积环境及其与有机质富集间的关系。结果表明,牛蹄塘组下段以硅质页岩为主,TOC含量4.96%~10.10%;上段以富泥硅质页岩为主,TOC含量1.43%~9.04%。下段硅质页岩沉积于水流停滞的深水陆棚环境,沉积古水体为贫氧的还原状态;上段富泥硅质页岩沉积时期,仍为贫氧的还原环境,但水体滞留程度、还原性较下段硅质页岩沉积期弱。贫氧的还原环境是影响牛蹄塘组黑色页岩有机质富集的主要因素,热液作用和陆源碎屑对牛蹄塘组黑色页岩有机质富集的影响较小。 | 夏鹏 付勇 杨镇 郭川 黄金强 黄明勇 | 2020 | 地质学报2020，94，3： | 22 |
| 2 | 贵州省松桃杨家湾锰矿含锰岩系地质地球化学特征显示文摘贵州松桃南华系'大塘坡式'锰矿经过多年的勘查研究,浅部已形成以西溪堡、李家湾、杨家湾为主的全新'锰三角'格局。杨家湾锰矿是该'锰三角'中一个大型锰矿床。通过对该矿区含锰岩系的地质地球化学特征研究,发现该区含锰岩系中见凝灰质等火山物质,同时具有热水成因的黄铁矿、重晶石、锰方解石等矿物组合。该锰矿在Fe-Mn-(Ni+Co+Cu)×10及P2O5-Y图解上均落在热水沉积区内,As、Sb、Ga、Ag、Ba、Zn、Co、Bi、W及Pb的含量较正常沉积岩明显偏高,且Co/Ni、Y/Ho及Nb/Ta比值均与海底黑烟囱热流体特征类似,该锰矿床稀土含量总体偏高,轻重稀土分异明显,轻稀土相对较富集,稀土配分曲线平缓,略向右倾斜,δEu(0.49~0.71)、δCe(0.94~1.25)及Ce/La-La/Yb图解也均表明热水参与的特征。此外,该锰矿δ13CPDB为-3.80‰~-4.17‰、δ18OPDB为-6.95‰~-8.78‰,据此估算成矿温度为54.2~65.7℃,为中低温热水条件。杨家湾锰矿为海底热水沉积成因。 | 何志威 杨瑞东 高军波 程伟 黄建国 | 2013 | 现代地质2013，27，3： | 19 |
| 3 | 贵州热水沉积矿床显示文摘将贵州热水沉积矿床划分为4个成矿期:1新元古代大塘坡期(成锰期);2早寒武世时期(Ni-Mo-V-Ba成矿期);3泥盆纪时期(重晶石-铁矿形成期);4二叠纪时期(锰矿-'大厂层'形成期)。贵州热水沉积岩及矿床的热水沉积序列在结构、构造上具有一致性:热水喷发初期以爆发相为特征,形成角砾状、碎屑状构造;主期以喷流相为特征,形成块状和透镜状构造,条带状和纹层状构造是热水间歇供给形成,为喷溢相特征;晚期以喷气作用为主,多形成浸染状构造。除泥盆纪成矿期之外,其余成矿期均有火山活动,火山-热水沉积是贵州热水沉积成矿的主要方式。不同期次所形成的热水沉积矿床均受深大断裂的明显控制,裂陷控制的深水盆地或台沟是矿质聚集的主要场所,也是找矿的主要靶区,不同类型矿床的找矿工作应以其产出特征及不同找矿标志为指导。 | 陈军 杨瑞东 高军波 魏怀瑞 何志威 | 2014 | 地质科技情报2014，33，5： | 11 |
| 4 | 贵州寒武系底部黑色岩系成矿序列划分与对比显示文摘一系列的黑色岩系多金属矿床广泛分布于中国南方地区寒武系底部,前人对多金属矿特征、成因等方面进行许多研究,但对Mo-Ni、V、P和Ba矿的成矿顺序研究较少。本文对云南德泽、贵州纳雍-坝黄-天柱及湘西柑子坪等地区的寒武系底部黑色岩系多金属矿的成岩成矿环境、矿石矿物微观特征、成矿地球化学等方面研究,结合元素富集层出现先后可将寒武系底部成矿作用自下而上分为四个成矿序列:即磷矿成矿序列、重晶石矿成矿序列、钒矿成矿序列、镍钼矿序列。同时,根据岩石组合、矿物组合、含矿性等特征,将贵州境内Mo-Ni、V、P和Ba矿床划分为三个成矿区,即纳雍-遵义-福泉黔中镍钼成矿区、铜仁-镇远-岑巩黔东南钒(镍钼)成矿区、天柱-新晃重晶石成矿区。 | 李军 高军波 魏怀瑞 陈述云 吴桐 高磊 杨瑞东 | 2019 | 地质与勘探2019，55，2： | 7 |
| 5 | Research on carbon and oxygen isotopes in phosphorus-bearing rock series of the Late Neoproteroic-Early Cambrian Taozichong Formation in Qingzhen City, Guizhou Province, Southwest China显示文摘In the study of the phosphate-bearing stratum at the bottom of the Cambrian system, the authors found that there occurred carbon isotope negative anomalies in the Taozichong section phosphate-bearing stratum in Qingzhen, Guizhou Province; they can be correspondingly compared with other synsedimentary carbon isotope negative anomalies both at home and abroad. The results showed that there occurred three negative anomalies of carbon isotopes in the Neoproterozoic-Early Cambrian Taozichong Formation, indicating that the temporal palaeo-oceanographical environment changed significantly, in which there happened two times of intensive carbon isotope variation, corresponding to creature extinction. Meanwhile, it is believed that the carbon isotope negative anomalies in phosphorites were caused by the ascending water mass of ocean current with the negative carbon isotopic composition of deep-ocean hydrothermal deposits. | MAO Tie YANG Ruidong MAO Jiaren YE Chun LIU Kun GAO Junbo | 2014 | Chinese Journal Of Geochemistry2014，33，4： | 6 |
| 6 | Geochemistry of the Batang Group in the Zhaokalong Area, Yushu, Qinghai: Implications for the Late Triassic Tectonism in the Northern Sanjiang Region, China显示文摘The Batang Group in the Zhaokalong area not only hosts an important Fe-Cu polymetallic deposit but also reveal important insights for the Late Triassic tectonism in the northern Sanjiang region. In order to delineate the tectonic setting and evolutionary process of the paleo arc-basin system, geochemical studies on the Batang Group strata have been carried out. The results suggest that andesite in the Zhaokalong area mainly belongs to the tholeiite series and is characterized by obvious fractionation of LREE and HREE, enrichment in LILE and depletion in HFSE, and a distinctly elevated δ^(34)SCDT average of 10.5‰. The sandstone is classified as lithic sandstone, which is also characterized by obvious fractionation of LREE and HREE, as well as weak negative Ce and Eu anomalies. The limestone displays positive Eu anomalies, with δ^(13)CPDB ranging from-1.3‰ to 4.4‰ and δ^(18) OSMOW ranging from 14.6‰ to 22.5‰. These results indicate that the andesite has a dual signature of both arc andesite and rift volcanic rocks, whereas the sandstone may be formed in an active continental margin, and the limestone could be deposited in a weak oxidizing shallow sea. The sandstone in the Zhaokalong area represents sedimentation in a platform slope facies, corresponding to the main stage of the Jinshajing oceanic basin subduction during the middle period of Late Triassic. The continental arc volcanic activity resulted from subsequent strengthened subduction, forming the andesite in the North Qiangtang backarc basin. Afterwards, the limestone was formed after the cessation of magmatic activity. The information gleaned from the Batang Group strata helped constrain the evolution of the paleo-Jomda island arc and Jinshajiang oceanic subduction in the Late Triassic. | LI Huan XI Xiaoshuang SUN Huashan KONG Hua WU Qianhong WU Chengming Jillian Aira S.GABO-RATIO | 2016 | Acta Geologica Sinica(English Edition)2016，90，2： | 3 |
| 7 | Carbon Isotope Features of the Sugetbrak Section in the Aksu-Wushi Area, Northwest China: Implications for the Precambrian/Cambrian Stratigraphic Correlations显示文摘The upper Qigeblaq Formation(Fm) dolostones and the Yurtus Fm phosphatic cherts, black shales, limestones, and dolostones are widely distributed in the Precambrian/Cambrian transitional succession of the Aksu-Wushi area. Negative δ13C excursion above the Yurtus Fm/Qigeblaq Fm boundary was determined in this study. The pronounced negative carbon isotope excursion occurs in the phosphatic chert layers at the bottom of the Cambrian Yurtus Fm, below which the first appearance of the Asteridium- Heliosphaeridium-Comasphaeridium(AHC) acritarch assemblage zone. The δ13C curve of the lower part of the Yurtus Fm in the Aksu-Wushi area was found to be correlated with the early Cambrian δ13C curves of the Zhujiaqing Fm(Daibu Member), the lower part of the Yanjiahe Fm on the Yangtze Platform in China, the lower Tal Fm in India, the Sukharikha Fm in Siberia, and the upper part of the Tsagaan Oloom Fm in Mongolia through biostigraphy. The lower part of the Yurtus Fm in the Tarim Basin is at the Nemakit-Daldynian stage, and the Precambrian/Cambrian boundary of the Aksu-Wushi area may be located in the phosphatic chert unit which just below the first appearance AHC acritarch assemblage zone. The negative δ13C excursion(N1) across the Precambrian/ Cambrian boundary in the studied section may have resulted from oceanic overturning and sea level rise. | YAO Chunyan DING Haifeng MA Dongsheng LI Guoxiang | 2014 | Acta Geologica Sinica(English Edition)2014，88，5： | 3 |
| 8 | 地质学报,2012年,第86卷,总目次显示文摘 | | 2012 | 地质学报2012，86，12： | 0 |
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