Results 21 to 30 of about 5,732,959 (308)

Trace metals in surface sediments of the Taiwan Strait: geochemical characteristics and environmental indication [PDF]

, 2016
The concentration and geochemical fractionation of six trace metals related with environmental quality assessment, namely Cd, Cr, Cu, Ni, Pb, and Zn, in 30 surface sediments from both inshore and offshore areas of the Taiwan Strait were measured to ...
ctchen@mail.nsysu.edu.tw, Zhuang, W, Chen, CTA (reprint author), Natl Sun Yat Sen Univ, Dept Oceanog, Kaohsiung 804, Taiwan. xlgao@yic.ac.cn, Chen, CTA, Zhou, FX, Lui, HK, Gao, XL, Lou, JY   +7 more
core   +1 more source

Zircon LA-ICP-MS Dating of Granites from the Southeastern Zongnai Mountain Alax and Its Geochemical Characteristics

Yankuang ceshi, 2015
There are many types of granites around the southeastern Zongnai Mountain rock mass in Alax, the types of rocks, the characteristics of source rocks, and tectonic setting by using the LA-ICP-MS zircon geochronology, petrographic observation, geochemical ...
XIE Fen-quan, WANG Li-dong, LI Qi, SHI Zhao-xia, CHEN Xue-bing, WEI An   +5 more
doaj   +1 more source

Geochemical characteristics of the widespread Tahuna Tephra [PDF]

New Zealand Journal of Geology and Geophysics, 2002
Abstract The c. 40 000 yr Tahuna Tephra found throughout the central North Island, New Zealand, and offshore in the Bay of Plenty, is considered to have erupted from the Okataina Volcanic Centre. Its glass and mineral chemistry, eruption temperature, and fO 2 are dissimilar ...
Victoria Smith, Phil Shane
openaire   +1 more source

Geochemical characteristics and geological significance of noble gases in natural gas from Songliao Basin, China

Shiyou shiyan dizhi
Geochemistry of noble gases has been applied to the study of deep Earth materials and celestial meteorites. With advancements in measurement technology, it is also increasingly being used in natural gas research.
Wei LI, Jianfa CHEN, Jie WANG, Xiaobo WANG, Daxiang HE, Dongliang WANG, Kaixuan LIU, Bing YOU, Cong CHEN, Rao FU, Shuaiqi TANG, Jiaqi ZHANG   +11 more
doaj   +1 more source

Geochemical Characteristics Comparison of Different Scale Sediments in the Humid and Semi-humid Hilly Area, Southern China

Yankuang ceshi, 2017
Appropriate sampling grain size is very important for accurate geochemical information and better exploration effects in different landscapes. In order to determine the best sampling grain size of the sediments in the humid and semi-humid hilly landscape,
CHEN Fu-rong, SHI Chun-hong, LIANG Hong-xia   +2 more
doaj   +1 more source

Geochemical Characteristics of Soil Selenium and Influencing Factors of Selenium Bioavailability in Rice Root Soils in Qingxi Area, Ganxian County, Jiangxi Province

Yankuang ceshi, 2021
BACKGROUND The south of Jiangxi Province is a typical geographical distribution area of selenium deficiency. However, some research results in recent years indicate that the rice has high selenium content.
LIU Bing-quan, SHA Min, XIE Chang-yu, ZHOU Qiang-qiang, WEI Xing-xing, ZHOU Fan   +5 more
doaj   +1 more source

Characteristics of Chang 7 shale gas reservoirs in Triassic Yanchang Formation of Ordos Basin and its exploration and development prospects

Shiyou shiyan dizhi
As the second-largest sedimentary basin in China, the Ordos Basin has enormous potential for oil and gas exploration. The Chang 7 member of the Triassic Yanchang Formation in the basin is extensively distributed with organic-rich source rocks, covering ...
Kai WU, Juanqin GAO, Guwei XIE, Weiwei YANG, Lirong LUO, Shanpeng LI   +5 more
doaj   +1 more source

Geochemical mapping by unmixing alluvial sediments: an example from northern Australia

, 2023
Alluvial sediments have long been used in geochemical surveys as their compositions are assumed to be representative of areas upstream. Overbank and floodplain sediments, in particular, are increasingly used for regional to continental-scale geochemical ...
Lipp, Alex G, de Caritat, Patrice, Roberts, Gareth G   +2 more
core   +1 more source

Petrogenesis of lavas from Detroit Seamount: Geochemical differences between Emperor Chain and Hawaiian volcanoes [PDF]

, 2005
The Hawaiian Ridge and Emperor Seamount Chain define a hot spot track that provides an 80 Myr record of Hawaiian magmatism. Detroit Seamount (∼76 to 81 Ma) is one of the oldest Emperor Seamounts.
S. Huang, Frey, F., M. Regelous, F. A. Frey, Huang, S., Regelous, M., Frey, F. A., T. Thordarson, Thordarson, T.   +8 more
core   +1 more source

Research on sedimentary environment and provenance for hydrocarbon source rocks of Upper Carboniferous Batamayineishan Formation in northeastern Junggar Basin: evidences from the geochemistry of mudstones

Shiyou shiyan dizhi
The distribution rules and hydrocarbon potential of source rocks are the major factors which determine oil and gas exploration in the northeastern Junggar Basin.
Qianru CAI, Jinduo WANG, Guanlong ZHANG, Zhihua SONG, Shengzhu WANG, Zhengrong XIONG, Shengli NI   +6 more
doaj   +1 more source