Results 21 to 30 of about 2,276 (185)

Analysis on the Characteristics of Mt. Emei Basalt Rock and Fiber-Used Basalt Deposit in E’bian Area, Sichuan Province

open access: yesKuangchan zonghe liyong, 2023
The Permian Emeishan basalt formations exposed in the E’bian area are mostly overflow facies, and the rocks are dark gray to gray-green. According to their genesis and structural composition characteristics, the Emeishan basalts in the E’bian area can be
Xuping Zhang   +4 more
doaj   +1 more source

Crustal SiO2 Content of the Emeishan Large Igneous Province and its Implications for Magma Volume and Plumbing System

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The Permian Emeishan large igneous province (LIP) in Southwestern China is recognized as a remnant of mantle plume activity. Its crust composition has a significant bearing on understanding the magmatic plumbing system in a LIP and the volume of magmas ...
Wei Li, Yun Chen, Yi‐Gang Xu
doaj   +1 more source

A Prospective Appraisal for the Exploration of Fiber-applied Basalts in Leibo Area, Sichuan Province

open access: yesKuangchan zonghe liyong, 2022
Leibo area is located in the eastern edge of KangDian palaeocontinet, Emeishan basalts in the area are formed probably by typical terrestrial eruption, effusive facies.
Wei Yang   +4 more
doaj   +1 more source

Analysis of karst development characteristics and influence of Miaoziping tunnel in E-Han expressway

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao, 2022
Taking Miaoziping tunnel of E-Han expressway as the research object, firstly, through the geological survey, tracer test and statistics of the number of karst caves exposed on the site, the characteristics of karst development in the tunnel site are ...
Huaming LI   +4 more
doaj   +1 more source

Late Guadalupian–early Lopingian marine geochemical records from the Upper Yangtze, South China: Implications for climate-biocrisis events

open access: yesFrontiers in Earth Science, 2023
Major paleoenvironmental changes occurred during the Guadalupian-Lopingian boundary (GLB) transition, but the causative linkages among the Emeishan Large Igneous Province (LIP), end-Guadalupian crisis and climatic fluctuations are still in dispute ...
Ruixuan Li   +15 more
doaj   +1 more source

Phylogenetic Analysis of Tanypodinae (Chironomidae, Diptera) Infered From Whole Mitochondrial Genomes. [PDF]

open access: yesEcol Evol
We generated the inaugural full mitogenomic sequences for 22 Tanypodinae taxa, and the mitochondrial genome sequence of another individual of Thienemannimyia tripunctata has been added; merged these novel records with previously released chironomid mitochondrial genomes; and performed an integrated comparative mitogenomic survey encompassing 55 ...
Liu WB   +5 more
europepmc   +2 more sources

Distribution of Heavy Metals and Ecological Risk of Soils in the Typical Geological Background Region of Southwest China

open access: yesYankuang ceshi, 2021
BACKGROUND 22.3% of the cultivated land in southwest China has excessive heavy metal content. The widely distributed Emeishan basalt and carbonate rocks in the region are considered to be the main source of heavy metals in the soil. At present, the level
HE Ling   +4 more
doaj   +1 more source

Large igneous provinces and mass extinctions: an update [PDF]

open access: yes, 2014
The temporal link between mass extinctions and large igneous provinces is well known. Here, we examine this link by focusing on the potential climatic effects of large igneous province eruptions during several extinction crises that show the best ...
Bond, David P. G., Wignall, Paul B.
core   +1 more source

Emeishan Basalts (SW China) and the ‘end-Guadalupian’ crisis: magnetobiostratigraphic constraints [PDF]

open access: yesJournal of the Geological Society, 2002
A magnetostratigraphic investigation of the Permian Emeishan LIP (large igneous province) was carried out on a composite section in Ebian County, close to the type area in Sichuan, SW China. The main succession of twelve flows (175 m thick) carries a normal polarity whilst the one reliable site from the overlying 30 m thick volcanic waning
Thompson, GM, Song, X, Ali, JR, Wang, Y
openaire   +3 more sources

Paleomagnetism and electron microscopy of the Emeishan Basalts, Yunnan, China [PDF]

open access: yesTectonophysics, 1993
Abstract Many normal and a few reversed characteristic directions of magnetization have been obtained by predominantly thermal demagnetization from ten sites of the Late Permian Emeishan Basalts collected near Kunming, Yunnan Province. The normal magnetization directions pass a fold test at the 99% confidence level and yield declination/inclination =
Van Der Voo, Rob   +5 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy