Results 71 to 80 of about 583,134 (272)

The spatial variation of Asian dust and marine aerosol contributions to glaciochemical signals in central Asia [PDF]

open access: yes, 1992
Short-term (6 months to 17 years) glaciochemical records have been collected from several glacier basins in the mountains of central Asia. The spatial distribution of snow chemistry in central Asia is controlled by the influx of dust from the large ...
Mayewski, Paul A, Wake, Cameron P
core   +1 more source

Exiled by Definition:The Salar of Northwest China [PDF]

open access: yes, 2005
The reform of state socialism came relatively late to Qinghai Province in the Northwest of the People’s Republic of China. One of Qinghai’s most dynamic groups in the social leadership of reform has been the Salar.
Goodman, David SG
core   +4 more sources

Neoarchean Arc Magmatism and Crust Recycling in the Northern Marginal Zone of the Limpopo Complex, Zimbabwe: New Insights From Zircon U‐Pb‐Hf Isotopes of a Charnockite Suite

open access: yesGeological Journal, EarlyView.
Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae   +6 more
wiley   +1 more source

Environmental change of the Qinghai-Tibetan Plateau recorded in the Lake Qinghai sediments

open access: yesJournal of the Sedimentological Society of Japan, 2007
Lake Qinghai has thick layers of the sediment over the range of 10,000 years. In order to reconstruct the palaeoenvironment around the Qinghai-Tibet plateau, water content, TOC, OC isotopes of the sediment and ion concentration of Na+ and Cl- of the pore water were examined.
Akira Miyaguchi   +3 more
openaire   +3 more sources

Thermal effect of thermokarst lake on the permafrost under embankment

open access: yesAdvances in Climate Change Research, 2021
In permafrost regions of the Qinghai-Tibet Plateau, road disaster caused by permafrost degradation cannot be ignored. As a common thermal disaster in permafrost regions, thermokarst lake has serious thermal erosion on permafrost and results in permafrost
Er-Xing Peng   +4 more
doaj   +1 more source

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

open access: yesGeological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang   +3 more
wiley   +1 more source

Research on the Algorithm of Lake Surface Height Inversion in Qinghai Lake Based on Sentinel-3A Altimeter

open access: yesRemote Sensing
Lakes are a crucial component of inland water bodies, and changes in their water levels serve as key indicators of global climate change. Traditional methods of lake water level monitoring rely heavily on hydrological stations, but there are problems ...
Chuntao Chen   +9 more
doaj   +1 more source

Comparison of γ-ray spectrometry and ICP-MS methods for measuring radioactive heat-producing elements of rocks: a case study on borehole samples from the Sichuan Basin, China [PDF]

open access: yes, 2017
We compared the consistency of γ-ray spectrometry and inductively coupled plasma mass spectrometry by analyzing measurement results of the radioactive heat-producing elements U, Th, and K from borehole samples.
Hu, Shengbiao   +3 more
core   +1 more source

Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau

open access: yesPeople and Nature, EarlyView.
Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
wiley   +1 more source

Hydrologic response and prediction of future water level changes in Qinghai Lake of Tibet Plateau, China

open access: yesJournal of Hydrology: Regional Studies
Study region: The Qinghai Lake basin (QLB) Study focus: The lake system of the Qinghai-Tibet Plateau is a crucial component of the global ecosystem. Global warming has significantly altered its water levels.
Haibin Wang   +4 more
doaj   +1 more source

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