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Influence of volcanism on the development of black shales in the Chang 7 Member of Yanchang Formation in the Ordos Basin
In geological history, volcanism is closely related to the deposition of many black shales. However, the specific mechanism between volcanism and the deposition of black shales is still unclear. The black shal...
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Quantification of methane fluxes from hydrocarbon seeps to the ocean and atmosphere: Development of an in situ and online gas flux measuring system
Natural hydrocarbon seeps in the marine environment are important contributors to greenhouse gases in the atmosphere. Such gases include methane, which plays a significant role in global carbon cycling and cli...
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The distribution and variation in the gas composition of macro-seeps on the near-shore Lingtou Promontory in the South China Sea
Natural hydrocarbon seeps in a marine environment are one of the important contributors to greenhouse gases in the atmosphere, including methane, which is significant to the global carbon cycling and climate c...
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Methane seepage in the Shenhu area of the northern South China Sea: constraints from carbonate chimneys
Two authigenic carbonate chimneys were recovered from the Shenhu area in the northern South China Sea at approximately 400 m water depth. The chimneys’ mineralogy, isotopic composition, and lipid biomarkers we...
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Characterization of authigenic carbonates from Huoshaogang landfill, Guangzhou, China: implication for microbial metabolism
Authigenic carbonates from a landfill leachate collection system (LCS) resulting from early diagenesis mediated by microbes, are unique archives of the biogeochemical processes and environmental conditions ind...
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Controlling factors for gas hydrate occurrence in Shenhu area on the northern slope of the South China Sea
Temperature and pressure on seafloor of the northern slope in the South China Sea are suitable for gas hydrate formation, but bottom simulation reflector (BSR), an indication of gas hydrate occurrence, only oc...
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Influence of water flow on gas hydrate accumulation at cold vents
A cold vent is an area where methane-rich fluid seepage occurs. This seepage may alter the local temperature, salinity, and subsequent accumulation of the gas hydrate. Using a kinetic gas hydrate formation mod...
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Open AccessFirst discovery and characterizations of late Cretaceous seep carbonates from **gaze in Tibet, China
Hydrocarbon seeps, widely occurring in continental margins, have become increasingly focused owing to their close relationships with gas hydrates, strong greenhouse gas methane, and biological resources in ext...
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Fatty-acids and their δ 13C characteristics of seep carbonates from the northern continental slope of Gulf of Mexico
Here we reported the fatty-acids and their δ 13C values in seep carbonates collected from Green Canyon lease block 185 (GC 185; Sample GC-F) at upper continental slope (water depth: ∼540 m...
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Petrographic and geochemical characterization of seep carbonate from Alaminos Canyon, Gulf of Mexico
Seep carbonates were collected from the Alaminos Canyon lease area, Gulf of Mexico. The carbonates are present as slabs and blocks. Bivalve shell and foraminifer are the dominant bioclasts in carbonate. Pores ...
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Bio-reef-chert suite and superlarge ore deposits
The bio-reef-chert suite is an important ore-bearing rock assemblage and one of the metallogenic rock suites of superlarge ore deposits. It is formed as a fixed and ordered suite in space and time, and compose...
