202426· Lithological characteristics. The results of thin section identifications show that the Xu2 member sandstones are mainly lithic arkose, feldspathic litharenite and litharenite according to the sandstone classification (Figure 1). And a small amount of arkse and subarkose are found in the Xu 2 member. Framework grains include content 72.22% quartz, 11.30% feldspar, and …
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Sandstone is a sedimentary rock composed mainly of sand-sized minerals, rock, or organic particles. It forms from the consolidation of sand over millions of …
20241211· Tight sandstone reservoirs experienced notable diagenetic alteration during burial, with calcite, dolomite, quartz, and clay cements …
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2020101· The results of this study show that fine slurry waste has physicochemical properties between sand and sandy loam while the properties of the slurry solids and scrap stone are similar to those of sandstone. Fine stone waste on intrusion into soil reduced the hydraulic conductivity and porosity of soil potentially reducing its productivity.
2024717· Analcime plays a significant role in sandstone reservoirs as an authigenic diagenetic mineral in the Junggar Basin (northwestern China). …
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2024717· Analcime plays a significant role in sandstone reservoirs as an authigenic diagenetic mineral in the Junggar Basin (northwestern China). However, the origin and controls on the reservoirs have received remarkably little attention. This study investigates the formation mechanism of analcime in the
4 · Zhangjiajie, China. Amazing quartz sandstone peaks and forests.
Sandstone: definition and specifications Is sandstone a sedimentary rock? Yes, it is. Sandstone is a sedimentary rock of great geological importance and …
4 · Zhangjiajie, China. Amazing quartz sandstone peaks and forests.
201721· Lower Permian Shihezi sandstone in Ordos Basin is the largest gas reservoir in China. Architecture elements of channel, overbank and floodplain facies…
Sandstone is a clastic sedimentary reservoir rock composed of mainly quartz and/or feldspars, and typically deposited by relatively high-energy processes, which winnow out much of the fine particle size fraction while transporting and depositing the coarser (sand-sized) particles.
Yangjiajie is characterized by quartz sandstone peaks, forests and canyons, and the scenery is breathtaking. In addition to unique natural landscapes, Zhangjiajie National Forest Park is also rich in animal and plant resources.
The reservoir of the Triassic Kelamayi formation is mainly composed of medium- to coarse-grained sandstone, fine sandstone, and pebbly sandstone. Most of the sandstones are lithic sandstones, according to the rock classification scheme of Folk 46 (Figure 4 A).
Sandstone: definition and specifications Is sandstone a sedimentary rock? Yes, it is. Sandstone is a sedimentary rock of great geological importance and …
202521· Reservoir characteristics and geological implications of marine sandstone on the periphery of Awati Sag, Tarim Basin, China: Case study of Upper Ordovician-Lower Silurian Kepingtage Formation☆
Zhangjiajie, China. Amazing quartz sandstone peaks and forests.
414· The Shanxi Formation, which was deposited in a meandering river environment (Zhang and Zhao 1990), consists mainly of siltstone, sandstone, limestone, claystone, and the No. 4 Coal seam, with a coarse quartz sandstone layer in the lowermost part of the formation.
11· The Ordos Basin is the second largest intracontinental sedimentary basin and an important energy resource in China. It is also one of the areas where tight sandstone gas has accumulated the most in the country. Five tight sandstone gas fields, namely, Sulige, Uxiqi, Daniudi, Yulin, and Jingbian, have been found in the basin.
101· Here, we analyzed the chemical compositions of quartz and muscovite from various HPQ occurrences in South China. The results indicate that the F content in muscovite and Ti content in quartz provide useful indicators for exploring and …
Zhangjiajie, China. Amazing quartz sandstone peaks and forests.
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202426· Lithological characteristics. The results of thin section identifications show that the Xu2 member sandstones are mainly lithic arkose, feldspathic litharenite and litharenite according to the sandstone classification (Figure 1). And a small amount of arkse and subarkose are found in the Xu 2 member. Framework grains include content 72.22% quartz, 11.30% feldspar, and …
2024515· Representative field photographs and photomicrographs of the Late Carboniferous–Triassic sedimentary successions in the Tianshuihai terrane: A-B, Hsg-6, lithic quartz sandstone of the Qiatier Formation; C-D, Kkg-2, fine-grained feldspathic quartz sandstone of the Kongkashankou Formation; E-F, Wmg-3, mica quartz schist of the Huangyangling