Geochemistry of radiolarian cherts from a Late Devonian continental margin basin, Loei fold belt, Indo-China terraneJournal of Earth Science - Tập 28 - Trang 29-50 - 2017
Hathaithip Thassanapak, Mongkol Udchachon, Clive Burrett, Qinglai Feng
More than 42 species of well-preserved Upper Devonian radiolarians have been obtained from cherts and siliceous shales in four sections (Chom Noi, Phu Kham Phe (P), Phu Kham Phe (C) and Pha Samyod) from the NE Thailand sector of the Loei fold belt, Indochina terrane. They include Ceratoikiscum sp. cf. planistellare Foreman, Helenifore laticlavium Nazarov & Ormiston, Astroentactinia sp. cf. paronae...... hiện toàn bộ
Middle Permian seamount from Xiahe area, Gansu Province, Northwest China: Zircon U-Pb age, biostratigraphy and tectonic implicationsJournal of Earth Science - Tập 20 - Trang 364-380 - 2009
Xiaohu Kou, Kexin Zhang, Yunhai Zhu, Zhongqiang Chen, Qixiang Lin, Fenning Chen, Jinyuan Huang
The well-preserved seamount buildups are documented from the northwestern Qinling (秦岭) orogenic belts, Northwest China. The study sections are located in the Ganjia (甘加) area of the Xiahe (夏河) County, Gansu (甘肃) Province. The dark basalt and overlying massive reef carbonate characterize the Xiahe seamount buildup. Basalts are dominated by the olivine type of rocks and bear distinct porphyritic tex...... hiện toàn bộ
Landslide hazard mapping using GIS and weight of evidence model in Qingshui River watershed of 2008 Wenchuan earthquake struck regionJournal of Earth Science - Tập 23 - Trang 97-120 - 2012
Chong Xu, Xiwei Xu, Fuchu Dai, Jianzhang Xiao, Xibin Tan, Renmao Yuan
Tens of thousands of landslides were triggered by May 12, 2008 earthquake over a broad area. The main purpose of this article is to apply and verify earthquake-triggered landslide hazard analysis techniques by using weight of evidence modeling in Qingshui (清水) River watershed, Deyang (德阳) City, Sichuan (四川) Province, China. Two thousand three hundred and twenty-one landslides were interpreted in t...... hiện toàn bộ
Operculina and Neoassilina: A Revision of Recent Nummulitid Genera Based on Molecular and Morphological Data Reveals a New GenusJournal of Earth Science - Tập 33 - Trang 1411-1424 - 2022
Maria Holzmann, Johann Hohenegger, Laure Apothéloz-Perret-Gentil, Raphael Morard, Sigal Abramovich, Danna Titelboim, Jan Pawlowski
The genus Operculina, a large symbiont-bearing benthic foraminifer, is characterized by high morphological variability showing thick involute to intermediate semi-involute to flat evolute tests. Different morphotypes are either considered as ecophenotypes or distinct species. In order to test the hypothesis of ecophenotypes versus different species, a single cell high throughput sequencing approac...... hiện toàn bộ
Re-Os Geochronology of the Liuchapo Formation across the Ediacaran-Cambrian Boundary of the Yangtze Block (South China)Journal of Earth Science - Tập 33 - Trang 25-35 - 2022
Yong Fu, Fuliang Wang, Chuan Guo, Chao Li, Peng Xia
The Ediacaran-Cambrian (E-C) succession in South China records remarkable oceanic, biological and geochemical variations, but it was not well defined geochronologically, which hinders the interpretation of the spatio-temporal seawater chemical architecture during the time E-C interval. This study presents two Re-Os isochron ages of 520.2 ± 6.1 and 561.7 ± 8.5 Ma for the barite-rich black shales fr...... hiện toàn bộ