【摘 要】
：
ObjectivernThe Trans-North China Orogen (TNCO) is widely considered as a Paleoproterozoic (1.95–1.85 Ga)continental collisional belt along which the Eastern and Western blocks amalgamated to form the North China Craton. In recent years, several late Arche
【机 构】
：
Guangdong Provincial Key Lab of Mineral Resources and Geological Processes,School of Earth Sciences
论文部分内容阅读
ObjectivernThe Trans-North China Orogen (TNCO) is widely considered as a Paleoproterozoic (1.95–1.85 Ga)continental collisional belt along which the Eastern and Western blocks amalgamated to form the North China Craton. In recent years, several late Archean (～2.50 Ga)metamorphic ages were reported in this belt (Yang et al.,2015; Xiao et al., 2019; Wang et al., 2020), arousing widespread discussion on late Archean metamorphism.
其他文献
The Jinghong mafic–ultramafic complex, exposed in the eastern margin of the Lancangjiang tectonic belt, is related to the subduction of the Paleo-Tethys Ocean. Its petrogenesis plays a key role in constraining the tectonic evolution of the eastern Paleo-T
Hydrous pyrolysis (HP) practiced on type-Ⅱ kerogen-bearing oil shale samples from the Sargelu Formation in the Ghali-Kuh Area, western Iran, using a specially designed apparatus was performed at different temperatures (250–350 ℃), with hydrocarbon generat
ObjectivernThe Zhangjiawa iron deposit is the largest-tonnage and representative iron skarn deposit, with proven reserves of 290 Mt at an average of 46％ Fe (up to >65％), in the Laiwu district, eastern North China Craton (NCC) (Figs.1a, b; Duan and Li, 201
ObjectivernOphiolite constitutes an important record of the history of the geological evolution of orogenic belts. There are four important Paleozoic ophiolite (mélange) zones in the Yining Block, northwestern China: northern Tianshan;northern margin of M
Abu Rusheid area lie in the south of the Eastern Desert of Egypt and comprises (1) ophiolitic mélange, consisting of ultramafic rocks and layered metagabbros in metasedimentary matrix (2) cataclastic group, consisting of protomylonites, mylonites, ultramy
Liquid–liquid immiscibility has crucial influences on geological processes, such as magma degassing and formation of ore deposits. Sulfate, as an important component, associates with many kinds of deposits. Two types of immiscibility, including (i) fluid–
The uvarovite-andradite and uvarovite-andradite-grossular solid-solution series are rare in nature. The discovery of uvarovite-andradite in serpentinite and rodingite from the ultra-high pressure (UHP) metamorphic belt in southwestern Tianshan provided an
An insight on occurrence of Fe-rich spherules from the Central Indian Ocean Basin (CIOB) provides an understanding of their distribution at a water depth of >5,000 m. In the present study, Fe-rich spherules are identified to occur in two different sedimen
Butterflies are diverse in virtually all aspects of their ontogeny,including morphology,life history,and behavior.However,the developmental regulatory mechanisms underlying the important phenotypic traits of butterflies at different developmental stages r