The brittle lineations found at the surface of faulted rocks are deformed and displaced. Slickensides are mainly calcite and quartz coated. The coated surfaces of slickenside with the calcite fiber crystal growth or quartz reveal earlier origin prior to the slickenside surfaces, uncoated or ...
Whereas some fractures of set F1 are filled with biotite, muscovite, quartz, feldspar, calcite and Fe-hydroxides, others from the same set are totally unfilled. A second joint set (F2) strikes almost E-W (mean strike 80°) and dips steeply to the north and/or south (Figs. 13 and 14...
Deformed or ductile mica grains, calcite cement and clay minerals create a problematic situation to block the pores and narrow the pore throat that causes to reduce the reservoir quality. High-pressure mercury injection capillary pressure, low-pressure adsorption of N2 and CO2, porosity and ...
The originally aragonitic ammonoid shells are replaced by calcite and frequently show sediment-filled borings. Both, ammonoids and surrounding matrix show subsolution. Occasionally thin Fe-Mn crusts document the existence of hardgrounds that probably developed during longer periods of non-deposition. ...
The history of technology provides many cases where simplified forms of man-made motion replace tangled forms of native motion. One of the reasons for thes
The investigation of the Cu{sup 2+} uptake by the calcium carbonate minerals vaterite and calcite with continuous wave and pulse electron paramagnetic reso... Schosseler,P.M,Schweiger,... 被引量: 47发表: 1999年 EPR Investigation of the Structure of a Rhombic Co2+ Center in an NaF Crystal...
The moldic porosity is totally filled by the calcite and anhydrite cements in Fig. 8i. Obviously different types of rock fabrics with the occluded pore system could be present in this class. Download: Download full-size image Fig. 8. Depositional texture and pore types in air–water capillary...
In: Proc 6th Conf Mech Beh of Salt: 159–165, Taylor & Francis Group, London Zhang X, Spiers CJ (2005) Compaction of granular calcite by pressure solution at room temperature and effects of pore fluid chemistry. Int J Rock Mech Min Sci 42(7–8):950–960 Zheng H, Wang F (2020) ...
There was calcite and anorthoclase feldspar in the samples used by Foroutan et al. (2020) while those were absent in the sample used for this research. Aside from the fact that calcite readily dis- solves in an acidic medium, anorthoclase is known to be stable only at very high ...