Damp- to dry aeolian systems: Sedimentology, climate forcing, and aeolian accumulation in the Late Cretaceous Liyou Basin, South China

2021 ◽  
pp. 106030
Author(s):  
Xiaocan Yu ◽  
Chunlian Wang ◽  
Gabriel Bertolini ◽  
Chenglin Liu ◽  
Jiuyi Wang
Keyword(s):  
Late Cretaceous ◽  
South China ◽  
Climate Forcing ◽  
Aeolian Systems

scholarly journals Burial and Exhumation History of the Lujing Uranium Ore Field, Zhuguangshan Complex, South China: Evidence from Low-Temperature Thermochronology

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 116
Author(s):  
Yue Sun ◽  
Barry P. Kohn ◽  
Samuel C. Boone ◽  
Dongsheng Wang ◽  
Kaixing Wang
Keyword(s):  
Early Cretaceous ◽  
Late Cretaceous ◽  
South China ◽  
Thermal History ◽  
Fission Track ◽  
Thermal Evolution ◽  
Negative Relationship ◽  
The Tibetan Plateau ◽  
Uranium Ore ◽  
Production Area

The Zhuguangshan complex hosts the main uranium production area in South China. We report (U-Th)/He and fission track thermochronological data from Triassic–Jurassic mineralized and non-mineralized granites and overlying Cambrian and Cretaceous sandstone units from the Lujing uranium ore field (LUOF) to constrain the upper crustal tectono-thermal evolution of the central Zhuguangshan complex. Two Cambrian sandstones yield reproducible zircon (U-Th)/He (ZHe) ages of 133–106 Ma and low effective uranium (eU) content (270–776 ppm). One Upper Cretaceous sandstone and seven Mesozoic granites are characterized by significant variability in ZHe ages (154–83 Ma and 167–36 Ma, respectively), which show a negative relationship with eU content (244–1098 ppm and 402–4615 ppm), suggesting that the observed age dispersion can be attributed to the effect of radiation damage accumulation on 4He diffusion. Correspondence between ZHe ages from sandstones and granites indicates that surrounding sedimentary rocks and igneous intrusions supplied sediment to the Cretaceous–Paleogene Fengzhou Basin lying adjacent to the LUOF. The concordance of apatite fission track (AFT) central ages (61–54 Ma) and unimodal distributions of confined track lengths of five samples from different rock units suggest that both sandstone and granite samples experienced a similar cooling history throughout the entire apatite partial annealing zone (~110–60 °C). Apatite (U-Th-Sm)/He (AHe) ages from six non-mineralized samples range from 67 to 19 Ma, with no apparent correlation to eU content (2–78 ppm). Thermal history modeling of data suggests that the LUOF experienced relatively rapid Early Cretaceous cooling. In most samples, this was followed by the latest Early Cretaceous–Late Cretaceous reheating and subsequent latest Late Cretaceous–Recent cooling to surface temperatures. This history is considered as a response to the transmission of far-field stresses, involving alternating periods of regional compression and extension, related to paleo-Pacific plate subduction and subsequent rollback followed by Late Paleogene–Recent India–Asia collision and associated uplift and eastward extrusion of the Tibetan Plateau. Thermal history models are consistent with the Fengzhou Basin having been significantly more extensive in the Late Cretaceous–Early Paleogene, covering much of the LUOF. Uranium ore bodies which may have formed prior to the Late Cretaceous may have been eroded by as much as ~1.2 to 4.8 km during the latest Late Cretaceous–Recent denudation.

Mid–Late Cretaceous igneous activity in South China: the Qianjia example, Hainan Island

2017 ◽  
Vol 60 (11-14) ◽  
pp. 1665-1683 ◽  
Author(s):  
Sai-Jun Sun ◽  
Li-Peng Zhang ◽  
Rong-Qing Zhang ◽  
Xing Ding ◽  
Hong-Li Zhu ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
South China ◽  
Hainan Island ◽  
Igneous Activity

Late Cretaceous plateau deserts in the South China Block, and Quaternary analogues; sedimentology, dune reconstruction and wind-water interactions

2020 ◽  
Vol 120 ◽  
pp. 104504
Author(s):  
Haijing Jiao ◽  
Chihua Wu ◽  
Juan Pedro Rodríguez-López ◽  
Xiaoming Sun ◽  
Haisheng Yi
Keyword(s):  
Late Cretaceous ◽  
South China ◽  
South China Block ◽  
The South

Origin of paleosubduction-modified mantle for Late Cretaceous (~100 Ma) diabase in northern Guangdong, South China: Geochronological and geochemical evidence

Lithos ◽  
2020 ◽  
Vol 370-371 ◽  
pp. 105603
Author(s):  
Hai Jiang ◽  
Shao-Yong Jiang ◽  
Kui-Dong Zhao ◽  
Wen-Qian Li ◽  
Hui-Chuan Liu
Keyword(s):  
Late Cretaceous ◽  
South China ◽  
Geochemical Evidence ◽  
Northern Guangdong

Kumamotoa, an early Late Cretaceous non-marine bivalve, from Fujian, south China

2006 ◽  
Vol 27 (6) ◽  
pp. 943-951 ◽  
Author(s):  
Chen Jin-Hua ◽  
Toshifumi Komatsu ◽  
Cao Mei-Zhen ◽  
Frank Stiller
Keyword(s):  
Late Cretaceous ◽  
South China ◽  
Marine Bivalve ◽  
Early Late

The geochemical behavior of tin and Late Cretaceous tin mineralization in South China

2020 ◽  
Vol 36 (1) ◽  
pp. 23-34
Author(s):  
SUI QingLin ◽  
◽  
ZHU HongLi ◽  
SUN SaiJun ◽  
CHEN DengHui ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
South China ◽  
Geochemical Behavior

scholarly journals Anomalously shallow inclination in middle-northern part of the South China block: palaeomagnetic study of Late Cretaceous red beds from Yichang area

2006 ◽  
Vol 164 (2) ◽  
pp. 290-300 ◽  
Author(s):  
Kazutoshi Narumoto ◽  
Zhenyu Yang ◽  
Kazuhiro Takemoto ◽  
Haider Zaman ◽  
Hayao Morinaga ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
South China ◽  
South China Block ◽  
The South ◽  
Red Beds
Sign in / Sign up

Export Citation Format

Share Document