Results 11 to 20 of about 1,538 (222)

Record of Tethyan ocean closure and Indosinian collision along the Ailaoshan suture zone (SW China) [PDF]

open access: yesGondwana Research, 2015
Zircon U–Pb and Lu–Hf isotopic data along with whole-rock elemental and Sr–Nd isotopic analytical results for the Xin'anzhai and Tongtiange granitic plutons in the Ailaoshan suture zone record the transition from subduction to collision associated with ...
Cai, Y.   +5 more
core   +6 more sources

Structural characteristics and evolution of the South Yellow Sea Basin since Indosinian

open access: yesChina Geology, 2018
: Based on the seismic data gathered in past years and the correlation between the sea and land areas of the Lower Yangtze Platform, the structural characteristics of the South Yellow Sea Basin since the Indosinian tectonic movement is studied in this ...
Bao-hua Lei   +4 more
doaj   +2 more sources

Progressive Indosinian N-S deformation of the Jiaochang structure in the Songpan-Ganzi fold-belt, Western China. [PDF]

open access: yesPLoS ONE, 2013
Integrated field data, microstructural and three-dimensional strain analyses are used to document coaxial N-S shortening and southward increase in deformation intensity and metamorphism at the Jiaochang structure. Two episodes of deformation (D1,D2) with
Bin Deng   +5 more
doaj   +4 more sources

Petrogenesis and geological significance of the Late Indosinian adakitic granites in the East Kunlun Orogen

open access: yesDizhi lixue xuebao
Objective  The Indosinian collision process of the East Kunlun Orogenic Belt remains a subject of debate. The newly discovered Triassic adakitic granites in the Xiaonanchuan area of East Kunlun provide new geological evidence that constrains the ...
WANG Bingzhang   +7 more
doaj   +2 more sources

The Indosinian orogeny: A perspective from sedimentary archives of north Vietnam [PDF]

open access: yesJournal of Asian Earth Sciences, 2018
The Triassic stratigraphic framework for the Song Da and the Sam Nua basins, north Vietnam, suffers important discrepancies regarding both the depositional environments and ages of the main formations they contain. Using sedimentological analyses and dating (foraminifer biostratigraphy and U-Pb dating on detrital zircon), we provide an improved ...
Rossignol, Camille   +9 more
openaire   +4 more sources

Indosinian isotope ages of plutons and deposits in southwestern Miaoershan-Yuechengling, northeastern Guangxi and implications on Indosinian mineralization in South China [PDF]

open access: yesChinese Science Bulletin, 2012
The Miaoershan-Yuechengling complex pluton is the largest granitoid complex in the western Nanling metallogenic belt with a surface exposure of >3000 km2. The complex pluton is composed of an early stage granitoid batholith and late stage small intrusions. The early stage batholith contains mainly medium-grained porphyritic mica granite and porphyritic
Wu, Jing   +8 more
openaire   +1 more source

Indosinian high-strain deformation for the Yunkaidashan tectonic belt, south China : Kinematics and 40Ar/39Ar geochronological constraints [PDF]

open access: yes, 2007
Structural and 40Ar/39Ar data from the Yunkaidashan Belt document kinematic and tectonothermal characteristics of early Mesozoic Indosinian orogenesis in the southern part of the South China Block.
Bureau of Geology and Mineral Resources of Guangdong Province (GDBGMR)   +90 more
core   +1 more source

Palaeokarst characteristics and effects on reservoirs in the fourth member of Leikoupo Formation, Longmen Mountain front, western Sichuan Basin

open access: yesShiyou shiyan dizhi, 2021
Dolostones of tidal flat facies are the major reservoir rock type of the fourth member of Leikoupo Formation, Longmen Mountain front, western Sichuan Basin. The reservoir controls are dominated by phase belt, dolomitization and denudation.
Yong LI   +5 more
doaj   +1 more source

U-Pb Dating of Zircons and Ore-bearing Potential of Zhulanbu Intrusions in the Southern Jiangxi Province

open access: yesYankuang ceshi, 2016
Zhulanbu granite is located in the Nanling district with a large exposed area, but its formation age is still unknown. It was previously considered to have formed at the Yanshanian, but no precise isotopic age was reported, as a result of the limitation ...
ZENG Le   +5 more
doaj   +1 more source

On the deep seated faults in the Northern Caucasus

open access: yesЛитосфера, 2020
Research subject. The paper describes large tectonic zones in the North Caucasus, which can be classified as deep faults according to a number of features. Among these formations are the Ancient axial fault zone earlier described by G.D. Azh-girei, which
V. L. Omelchenko
doaj   +1 more source

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