Results 31 to 40 of about 47,954 (161)

Early Triassic microbialites from the Changxing Region of Zhejiang Province, South China

Journal of Palaeogeography, 2019
Microbialites, often considered as a signal of extreme marine environment, are common in the Lower Triassic strata of South China where they flourished in the aftermath of the end-Permian mass extinction.
Ya-Fei Huang, David P. G. Bond, Yong-Biao Wang, Tan Wang, Zhi-Xing Yi, Ai-Hua Yuan, Jia-Yuan Jia, Yu-Qi Su   +7 more
doaj   +1 more source

Progress of copper isotope and its application in environmental pollution tracing

地质科技通报, 2023
In recent years, environmental problems have been a hot topic of social concern, such as heavy metal pollution in the atmosphere, soil and sediment, which are closely related to our life.To solve the heavy metal pollution in environment, the key is to ...
Yan Han, Yating Hu, Qian Wang, Minghui Shi, Lian Zhou   +4 more
doaj   +1 more source

Application of induced polarization gradient measurement in the exploration of the sanjiaotong gold mining area on the northern margin of the Qinghai Tibet Plateau

Frontiers in Earth Science
With the increasingly difficult situation of mineral resources in various countries around the world, there is an urgent need for effective deep. Exploration techniques and methods to expand mineral resources and enhance the survival capacity of mines ...
Hao Zhou, Shanping Li, Yadong Wang, Yongzhuo Lu, Xinli Zhang, Jianping Feng, Yongtao Yuan   +6 more
doaj   +1 more source

Oxygen Isotope In Situ Microanalysis of Zircon by SHRIMP Ⅴ

Yankuang ceshi
Oxygen isotope analysis can provide important genetic information for the formation and evolution of rocks, hydrothermal fluids, and mineral deposits. It is a powerful tool for petrology and mineral deposits research.
Pengfei WEI, Ke GENG, Jianhui LIU, Yan ZHANG, Dapeng LI, Na CAI, Chao ZHANG, Qiang LIU, Wei XIE   +8 more
doaj   +1 more source

In-situ Non-destructive Determination of Major and Trace Elements in Large Size Ceramic Samples by Open Laser Ablation Inductively Coupled Plasma-Mass Spectrometry

Yankuang ceshi, 2021
BACKGROUND Usually, laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS) analysis is equipped with a closed ablation cell. It cannot be used for non-destructive analysis of the large-size samples which exceeds the size of the cell ...
ZHOU Fan, LI Ming, CHAI Xin-na, HU Zhao-chu, LUO Tao, HU Sheng-hong   +5 more
doaj   +1 more source

Identification of driving factors and water quality evaluation of groundwater in Quanzhou City, a typical coastal area in Southeast China

Scientific Reports
Identifying the drivers and threats to coastal groundwater quality has emerged as one of the critical environmental and resource management issues. In this study, 140 shallow groundwater samples were collected from the coastal plain of Quanzhou City in ...
Guowei Shi, Jianfang Dong, Huijun Dong, Yi Li, Yuanjing Zhang, Yaci Liu, Yasong Li   +6 more
doaj   +1 more source

Rutile in Amphibolite Facies Metamorphic Rocks: A Rare Example from the East Qinling Orogen, China

Applied Sciences, 2021
Rutile is an important ore mineral to meet the increasing demand of critical metal Ti in various sectors. Here we report a rare example of rutile deposits hosted within the Baishugang–Wujianfang amphibolite-facies metamorphic rocks in the East Qinling ...
Changming Wang, Shicheng Rao, Kangxing Shi, Leon Bagas, Qi Chen, Jiaxuan Zhu, Hongyu Duan, Lijun Liu   +7 more
doaj   +1 more source

Centrifugation method for rapid measurement of total soil water-soluble salt

Agricultural Water Management
The gravimetric method is the most precise and intuitive technique for measuring the total soil water-soluble salt (TS). However, its application in intensive testing tasks is limited by the time-consuming suction filtration process.
Zhengyang Jia, Zi Chen, Hai Yang, Yun Li, Quanping Zhou, Yuehua Jiang, Yuanyuan Chen, Hong Zhang, Qiuju Qi, Lili Hou, Shijia Mei, Yang Jin   +11 more
doaj   +1 more source

Insights into earthquake-induced tsunamis in the Caucasus’ largest Lake Sevan

Scientific Reports
By leveraging the Okada model, the study makes the first-ever attempt to examine earthquake-induced tsunamis in Lake Sevan, related to the activation of underwater segments of the active Pambak-Sevan-Syunik Fault (PSSF), the largest geological structure ...
Seda Avagyan, Dmitri Arakelyan, Gagik Alaverdyan, Naira Egnatosyan, Ara Avagyan   +4 more
doaj   +1 more source

Alpine-style nappes thrust over ancient North China continental margin demonstrate large Archean horizontal plate motions

Nature Communications, 2021
How far back in time plate tectonics operated on Earth is debated because of a paucity of geological evidence for horizontal plate motions. Here the authors show that plates moved laterally by >3500 kilometres 2.7–2.5 billion years ago, demonstrating ...
Yating Zhong, Timothy Kusky, Lu Wang, Ali Polat, Xuanyu Liu, Yaying Peng, Zhikang Luan, Chuanhai Wang, Junpeng Wang, Hao Deng   +9 more
doaj   +1 more source