A 234U and 230Th determination method based on an extraction chromatographic separation followed by ICP-MS with quadrupole (ICP-QMS) was developed. For authigenic carbonates, a second separation step ...

Authigenic carbonate fluorapatite (CFA) has been suggested to represent a significant phosphorus sink in the deep ocean, but its formation mechanisms in oceanic low-productivity settings remain poorly ...

To investigate the origin of quartz and its effect on shale reservoirs in the Dalong Formation, we conducted a thorough analysis of shale samples using various techniques including optical microscopy, ...

Note: Notice of Retraction: After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication ...

Aiming at the problem of single and poor adaptability of Bai-823 plugging removal system, an authigenic mud acid system using methyl formate, ammonium chloride, and ammonium fluoride as raw materials ...

However, little has been reported on the morphological characteristics and the constraints of authigenic pyrite in the offshore Zhoushan sediments. In this study, we selected, separated, and ...

The authors measured the permeability of faulted authigenic clay-bearing (i.e. clay formed in-situ) sandstones in the laboratory, and performed detailed microstructural analysis to look at clay ...

Authigenic pyrite shows different morphologies: framboids (up to 20 μm) and individual grains of a rounded shape or close to the pentagonal dodecahedron form (approximately 5 μm). Fine gravel (rounded ...

Authigenic chlorite developed in the reservoirs has influenced the change of the reservoir quality in two respects. On the one hand, authigenic chlorite can protect the residual pores, improve the ...