... ). The Prisayan Formation lies concordantly over the coal-bearing Cheremkhovo Formation and is discordantly overlain by the Kuda Formation. It is widespread mostly in the southern and southeastern parts of the Irkutsk coal basin and reaches a thickness of 150–250 m in the fore-Irkut, fore-Sayan, and fore-Baikal...

... samples from the Prisayan, Kuda and Koty Formations of the Irkutsk Basin. The formation of Jurassic sedimentary basins within the southern part of the Siberian continent was controlled by tectonic reactivation of the region, which most likely is associated with the evolution and closure...

... of the Irkutsk reservoir opposite the “Stroitel” gardening establishment; c , d – VDKhR-8 outcrop on the left bank of the Irkutsk reservoir; d – lithological boundary between the Prisayan and Kuda formations (close-up). See the remaining denotations in Fig. 4 . ...

...+) Fluviatile littoral Recent and Sub-Recent - -- Pleistocene to Sub-Recent Dwarka Formation of Western Saurashtra Piram beds of Southeastern Saurashtra 125 28 littoral to epineritic Fluviolittoral Uppermost Miocene to Pliocene Gaj Formation Kuda sandstone inember 250 Bhumbji conglomerate member 690 Epineritic...

... the coastal tracts from Bhavnagar to Okha Rann ( Pandey et al., 2007 ). Srivastava (1963 ) divided the Gaj Formation into three members-the lower Ratanpur Clay Member, the Bhumbli Conglomerate and the topmost Kuda Sandstone Member ( Table 1 ). The Bhumbli Conglomerate Member is made up of fossiliferous...

..., Kochema, 23, Tetere, 24, Angara–Kovykta, 25, Upper Lena–Kuda, 26, Bratsk. petroleum accumulation zones proved revealed and predicted petroliferous complexes Lena–Tunguska province In oil geology, a petroleum accumulation zone is a group of petroleum fields localized in similar...

.... These geochemical characteristics indicate that the diabase and andesite were mostly generated in a subduction-related setting. Igneous zircons from the diabase yielded a 206 Pb/ 238 U age of 421.5 ± 2.2 Ma (MSWD = 0.44), representing the formation time of the subduction-related rocks. Together with the regional...

... are brought about by an increasing flux of fluids from the subducting slab. At this stage of the Shervais ( 2001 ) model, an even higher fluid flux would give rise to tholeiites even more enriched in LREE and Ti (Shervais 2001 ), like the group 1 basalts. The third and final phase in the formation...

... with iron deposits in the Bulunkuole Complex, West Kunlun Orogen, offer insights into both the complex’s formation age and Proto-Tethys evolution. This study presents newly obtained zircon U–Pb age data (~536 Ma) along with comprehensive whole-rock major and trace element and Sr–Nd–Hf isotope analyses...

.... There are abundant magmatic rocks in the west Kunlun orogenic belt that contain crucial information about its formation and evolution, especially the evolution of the Proto- to Paleo-Tethys oceans ( Mattern and Schneider, 2000 ; Xiao et al., 2003 ; 2005 ; Jiang et al., 2013 ). However, fundamental geological data...

... preservation and fault reactivation in the Timor Sea. Exploration drilling on the high has resulted in significantly higher success rates than other parts of the Timor Sea, with the discovery of several closely spaced oil fields (e.g., Laminaria, Corallina, Buffalo, Jahal, Kuda Tasi; Figure 2 ). Most...

... the boundary faults on all the sides ( Merh, 1995 ). The tertiary sediments have also undergone folding and faulting due to movement of the block along the major faults. The important folds include the Bhavnagar nose, the Avania syncline and the Ghogha nose with the Bhumbhali and the Kuda monocline ( GMDC...

... terrane accretion and new subduction-zone formation processes, which thus provides a natural laboratory for studying SI dynamics ( Zhong and Li, 2020 ; Wu et al., 2020 ; Li et al., 2013 , 2019a ; Yan et al., 2019 ; Dilek and Furnes, 2014 ). The Proto-Tethys Ocean is generally considered to have...

... along which the drifting continental blocks slid away. The thick volcanic succession now recognized along the Browse margin might prove to be rift basin-fill, but this does not explain the absence of precursor rifting along, for example, the Exmouth Plateau, where the Triassic Mungaroo Formation...

... convex towards the host intrusion ( Fig. 3b ). These features indicate that the formation of the enclaves could correspond to mafic magma pulses being injected into a partially crystallized magmatic chamber or crystal mush zone (Jerram & Petford, 2011 ; Castro, 2013 ). However, based on field...

... Province. In the summer of 1871 Chekanovskiy continued his work in that province, especially in the area of the Angara Rapids and, in order to study coal-bearing formations, at a number of sites in Verkholensk and Balagansk okrugs [a territorial administrative division comprising a national group...