The Triassic Duobaoshan appinite-granite suite, NE China: …

Aug 1, 2021 · The eastern section of the Central Asian Orogenic Belt (CAOB) has experienced the evolution of the Paleo-Asian Ocean, Mongol-Okhotsk Ocean, and Paleo-Pacific Ocean from the early Paleozoic to the Mesozoic (Liu et al., 2017b; Wilde and Zhou, 2015; Wu et al., 2011; Zhang et al., 2019; Zhang et al., 2020).It is generally considered that the tectonic evolution of …

Best China Travel & Tour Packages From …

Nov 1, 2023 · According to new tuff zircon U-Pb geochronology and correlation of marine and non-marine bivalve assemblages from eastern Heilongjiang, NE China, Early Cretaceous marine transgressions have been dated as a Barremian to Albian age (Fig. 2) (Sha, 2007, Sha et al., 2008, Chen et al., 2018).However, the Aptian rapid peak transgression and the following …

A comparative study of oil shale deposition in the Upper …

Dec 1, 2022 · The Songliao Basin is a lacustrine rift basin which developed a complete Cretaceous continental succession in NE China (Fig. 1 A) (Chen, 2003; Huang et al., 2013; Jia et al., 2013; Wang et al., 2013a, b).The Daqing Oilfield, located in the central part of the basin, is one of the most productive oilfields in the country (Zhou and Littke, 1999).The two major …

Metallogenic Epoch and Tectonic Setting of Saima Niobium …

The Saima deposit is a newly discovered niobium deposit which is located in the eastern of Liaoning Province, NE China. Its mineralization age and geochemical characteristics are firstly reported in this study. The Nb orebodies are hosted by the grey–brown to grass-green aegirine nepheline syenite. Detailed petrographical studies show that the syenite consists of orthoclase …

Crustal structure beneath NE China imaged by NECESSArray …

Jul 15, 2014 · The northeast China consists of the northeast China plain (Songliao basin) in its center, the Great Xing'an range to the west, the Changbaishan mountain range and Zhangguangcai range to the east (Fig. 1).The region is bounded by the Sino–Korean craton (also known as the North China craton) in the south at the Solonker suture zone where the paleo …

Palynological evidence for the Late Cretaceous lake …

The research was supported by the National Natural Science Foundation of China (42172017, 42072009) and China Geological Survey projects (Grant Nos. DD20242686, DD20242217). Heartfelt thanks to Eugenia Bugdaevad and Valentina Markevich, Federal Scientific Center of East Asia Terrestrial Biodiversity, and Abdul Rahman Ashraf of Bonn University ...

Coal petrology of the Yimin Formation (Albian) in the Hailar Basin, NE ...

Aug 1, 2021 · Coal seams preserve continuous and high-resolution records of paleoenvironments and wildfire events during peat accumulation. In order to elucidate wildfire characteristics and terrestrial climate changes during the time of peat accumulation, petrographic characteristics of coals in the Lower Cretaceous Yimin Formation (Albian) in the Jiuqiao Sag, Hailar Basin, NE …

An orocline in the eastern Central Asian Orogenic Belt

Oct 1, 2021 · The Central Asian Orogenic Belt (CAOB) is the largest accretionary orogen in the world with considerable Phanerozoic juvenile crustal growth. The eastern segment of the CAOB is occupied by NE China and its adjacent areas, which locates in a triangle area surrounded by Siberian Craton to the northwest, North China Craton (NCC) to the south and Pacific oceanic …

Late Mesozoic stratigraphic framework of the Great Xing’an Range, NE ...

Oct 1, 2024 · Mesozoic magmatism in NE China has been attributed to subduction of the Paleo-Pacific Plate beneath Eurasia, as evidenced by the landward migration of Mesozoic igneous rocks from the Jiamusi Massif to the Great Xing’an Range (Wang et al., 2006a, Zhang et al., 2008, Zhang et al., 2010, Wu et al., 2011).

Late Mesozoic tectonic evolution of the Songliao basin, NE China ...

Nov 1, 2012 · The widespread Paleozoic and Mesozoic magmatic rocks distributed in the Mongol-Okhotsk orogenic belt of the NE Asia (e.g., Zorin, 1999, Tomurtogoo et al., 2005), especially those distributed in the northern periphery of the Songliao basin in NE China, are the most likely source for the Denglouku Formation, whereas old basement rocks of the ...