REE Geochemistry in the Weathered Crust of Granites, Longnan Area, Jiangxi Province Tập 3 Số 2 - Trang 193-209 - 1990
Wu Chengyu, Huang Dianhao, Guo Zhongxun
Abstract Warm and humid climate and gentle hilly topography have provided
favourable conditions for the development of the weathering crust of the granite
intrusions in the Longnan area, Jiangxi Province. REE is mostly concentrated in
an adsorption state in clay in the wholly weathered zone. The rare‐earth
minerals enriched in the parent rocks provided the source material for the REE
enrichment. E... hiện toàn bộ
Current Knowledge of Mesozoic Coleoptera from Daohugou and Liaoning (Northeast China) Tập 84 Số 4 - Trang 783-792 - 2010
Alexander G. Kirejtshuk, А. Г. Пономаренко, А. А. Прокин, Huali Chang, G.V. Nikolajev, Dong Ren
Abstract:The present paper is devoted to an overview on fossil Coleoptera
studied from Inner Mongolia, Daohugou (Middle Jurassic, Jiulongshan Formation)
and Liaoning (Upper Jurassic‐Lower Cretaceous, Yixian Formation) deposited in
Chinese collections. As a result, species of the tribe Sperchopsini and
Hydrophilini from Hydrophilidae, families and subfamilies Silphidae, Syndesinae
from Lucanidae, P... hiện toàn bộ
Marine Geohazards: Review and Future Perspective Tập 90 Số 4 - Trang 1455-1470 - 2016
Yonggang Jia, Chaoqi Zhu, Liping Liu, Dong Wang
AbstractWith offshore resource exploration moving to the deep water, marine
geohazards have been attracting attention from the academic and industry.
Research achievements of marine geohazards were reviewed in this paper. We
analyzed and discussed typical issues among marine geohazards, including coastal
erosion, submarine slope failure, turbidity current and special hazards induced
by gas hydrate... hiện toàn bộ
U‐Pb Age and Hf Isotope Study of Detrital Zircons from the Wanzi Supracrustals: Constraints on the Tectonic Setting and Evolution of the Fuping Complex, Trans‐North China Orogen Tập 80 Số 6 - Trang 844-863 - 2006
Xiaoping Xia, Min Sun, Guochun Zhao, Fu‐Yuan Wu, Ping Xu, Jian Zhang, Yanhong He, Ji-Heng Zhang
Abstract: Located in the middle segment of the Trans‐North China Orogen, the
Fuping Complex is considered as a critical area in understanding the evolution
history of the North China Craton (NCC). The complex is composed of various
high‐grade and multiply deformed rocks, including gray gneiss, basic granulite,
amphibolite, fine‐grained gneiss and marble, metamorphosed to upper amphibolite
or granu... hiện toàn bộ
Lower Triassic and Induan‐Olenekian Boundary in Chaohu, Anhui Province, South China Tập 85 Số 2 - Trang 399-407 - 2011
Jinnan Tong, Laishi Zhao
Abstract:Since the West Pingdingshan Section in Chaohu was proposed as the
candidate of the Global Stratotype Section and Point of the Induan‐Olenekian
boundary in 2003, the Lower Triassic of Chaohu has been extensively studied.
Based on the studies on the Lower Triassic of Chaohu, (1) a continuous conodont
zonation is established, which has become an important reference for Lower
Triassic stratig... hiện toàn bộ
Large Tetrapod Burrows from the Permian Naobaogou Formation of the Daqingshan Area, Nei Mongol, China Tập 87 Số 6 - Trang 1501-1507 - 2013
Jun Liu, Lu Li
AbstractTwo new tetrapod burrow casts from the Naobaogou Formation (Middle or
Late Permian) of Nei Mongol, China are described. It marks the first
pre‐Cenozoic tetrapod burrow from China, and one of the earliest records of
tetrapod burrows. Comparison to other Permian and Triassic burrows suggests that
these burrows were created by tetrapod slightly smaller than Lystrosaurus.
Deduced from the morp... hiện toàn bộ
New Approaches and Markers for Identifying Secondary Biogenic Coalbed Gas Tập 86 Số 1 - Trang 199-208 - 2012
Mingxin Tao, Li Jing, Xiaobin Li, Yuzhen Ma, Zhongping Li, Zuodong Wang, Gao Zhongliang, Zhang Xiao-jun, Yanlong Wang
Abstract:According to the adsorption‐desorption characteristics of coalbed gas
and analysis of various experimental data, this paper proposes that the
generation of secondary biogenic gas (SBG) and its mixing of with the residual
thermogenic gas at an early stage inevitably lead to secondary changes of the
thermogenic gas and various geochemical additive effects. Experimental results
also show tha... hiện toàn bộ
Late Jurassic–Early Cretaceous Plutonism in the Northern Part of the Precambrian North China Craton: SHRIMP Zircon U–Pb Dating of Diorites and Granites from the Yunmengshan Geopark, Beijing Tập 83 Số 2 - Trang 310-320 - 2009
Yuruo Shi, Xitao Zhao, Yinsheng Ma, Daogong Hu, Qisheng Liu, Zhenhan Wu, Tianming Gao, Dunyi Liu
Abstract:The Yunmengshan Geopark in northern Beijing is located within the
Yanshan range. It contains the Yunmengshan batholith, which is dominated by two
plutons: the Yunmengshan gneissic granite and the Shicheng gneissic diorite.
Four samples of the Yunmengshan gneissic granite give SHRIMP zircon U–Pb ages
from 145 to 141 Ma, whereas four samples of the Shicheng gneissic diorite have
ages from 1... hiện toàn bộ
The Occurrence of Oleananes in the Beibuwan Basin and Its Application to the Study of Maturity and Oil‐Source Rock Correlation Tập 82 Số 3 - Trang 585-595 - 2008
Meijun Li, Tieguan Wang, Liu Ju, Meizhu Zhang, H. Lu, Qinglin Ma, Lihui Gao
Abstract: The oleanane parameter, i.e., OP (oleananes/(oleananes+C30hopanes)) in
the two sedimentary columns of the Beibuwan Basin, South China Sea, can be used
to delimit the top of oil generation window, with Ro (/%) of 0.53 in Well M1 and
0.55 in Wells H1/Hd1/Hd2, respectively. Comparing with vitrinite reflectance
(Ro/%), the OP features a dynamic range and can indicate the oil generation
windo... hiện toàn bộ