Reassessment of the Distribution of Mantle CO₂ in the Bohai Sea, China: The Perspective from the Source and Pathway System

Abstract

A large number of reservoirs with high levels of CO 2 of inorganic origin and CO 2 gas pools of inorganic origin occur in the Songliao Basin,

Paleoenvironmental Characteristics of Paleogene Lacustrine Source Rocks in the Western Bozhong Sag, Bohai Bay Basin, China: Evidence from Biomarkers, Major and Trace Elements

“…Strike-slip is the main control factor for tectonic movement, trap formation and petroleum accumulation in Bozhong Sag since its Cenozoic deposition (Hsiao et al, 2004;Feng et al, 2016;Yu et al, 2020). The Shijiutuo Uplift is to the north of Bozhong Sag; the basement mainly consists of Mesozoic volcanic and clastic rocks, Paleozoic carbonate rocks and an Archaean metamorphic granite (Xu et al, 2016;Liu et al, 2017;Tang et al, 2022). The Shaleitian Uplift is located to the west of Bozhong Sag, with a basement that mainly includes Proterozoic magmatitic granite, with some Archean strata (Hao et al, 2010;Yu et al, 2020); the location of the western Bozhong Sag in the south of Shijiutuo and east of the Shaleitian Uplift, is controlled by boundary faults in surrounding uplifts (Chen et al, 2021) (Fig.…”

Determination of subsurface lineaments in the Hoang Sa islands using enhanced methods of gravity total horizontal gradient

“…5a). In recent years, the use of gravity data from the global marine gravity model in detecting geological structures has shown great success (Kha and Trung, 2020;Trung et al, 2018Pham et al, 2021d, e;Oksum et al, 2021b;Ghomsi et al, 2022b;Tang et al, 2022, Yu et al, 2022.…”

Phase Stability and Reactions of Subducting CaCO3 under Upper Mantle Conditions

“…Substantial quantities of carbonates may further be transported into the deep mantle (i.e., the mantle transition zone and the lower mantle), even reaching the core-mantle boundary (Dasgupta and Hirschmann, 2010;Kelemen and Manning, 2015;Lee et al, 2019). The migration and stability of carbonates dictate the conversion between surface and deep carbon, thus influencing the long-term CO 2 content of the atmosphere, modulating climate change and fundamentally shaping the habitability of our planet (Walker et al, 1981;Tang et al, 2022).…”