Abstract Microbial anaerobic oxidation of methane coupled to the reduction Mn(IV)-oxides, typically MnO 2 , derived from continental weathering and riverine transport has been proposed as a globally important sink methane. However, potential role hydrothermal Mn(IV) oxide-rich sediments sink, mechanisms underpinning at high-temperature fields remain poorly understood. Here, we report occurrence...

Impact of diagenesis on carbonate mound formation This thesis is devoted to define the parameters influencing cold-water coral growth and therefore carbonate mound development with a focus on the impact of diagenesis on mound sediments. The first part of this thesis (Chapters 2 to 4) discusses the distribution and growth history of carbonate mounds, the sedimentary processes leading to sediment...

Batupasir Formasi Kanikeh yang berumur Carnian-Norian, tersebar dari Maluku hingga Tenggara. terendapkan pada lingkungan transisi dan karakter reservoir formasi ini masih belum banyak diungkap. Studi fokus terhadap pengaruh diagenesis karakteristik sikuen batupasir Carnian-Norian di Daerah Seram Bagian Timur, Maluku. Metode digunakan adalah pengamatan petrografi Scanning Electron Microscope-Ene...

Regional variation of formation water chemistry and diagenesis reaction in underpressured system: example from Shiwu depression of Songliao basin, NE China X.N. Xie*, J.J. Jiao, J.M. Cheng Faculty of Earth Resources, College of Earth Resources, China University of Geosciences, Wuhan, 430074, China Department of Earth Science, University of Hong Kong, Hong Kong, China Faculty of Engineering, Chi...

Diagenesis is a double-edged sword of geochemical recordings. It makes us always doubt about the representativeness many indicators, especially isotope and mineral related. also provides window to explore biogeochemical processes at water–rock interface, which are related interactions between hydrosphere, biosphere, lithosphere. In this study, we identified microbial early diagenesis in lacustr...

The Upper Triassic Chang-7 Member of the Ordos Basin contains typical tight sandstone reservoirs. Reservoir quality is affected by diagenesis, which a critical factor in oil exploration. In this study, sandstones were studied variety experimental methods, including thin sections, scanning electron microscopy (SEM), and X-ray diffraction (XRD), to determine reservoir characteristics diagenesis d...

The Lower Cretaceous Tuxen (lower Hauterivian – upper Barremian) and Sola (upper Barremian Albian) Formations in the Danish Central Graben (North Sea) constitute one of oldest chalk successions recorded globally, but have received little attention with regards to sedimentary facies depositional processes. This study presents first comprehensive carbonate analysis succession, retrieved from seve...