Shale - Wikipedia
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al 2 Si 2 O 5 4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. [1]
Shale | Properties, Composition, Formation, Uses - Geology Science
2023年8月21日 · Shale is a laminated or fissile clastic sedimentary rock that composed of predominance of silt and clay other minerals, especially quartz and calcite. Characteristic properties of shale is breaks along thin laminae or parallel layering or bedding called fissility. It is most abundant sedimentary rock.
Shale | Formation, Composition, Sedimentary | Britannica
shale, any of a group of fine-grained, laminated sedimentary rocks consisting of silt- and clay-sized particles. Shale is the most abundant of the sedimentary rocks, accounting for roughly 70 percent of this rock type in the crust of the Earth .
Shale: Sedimentary Rock - Pictures, Definition & More - Geology.com
Shale: Shale breaks into thin pieces with sharp edges. It occurs in a wide range of colors that include red, brown, green, gray, and black. It is the most common sedimentary rock and is found in sedimentary basins worldwide. ADVERTISEMENT.
Shale geology: characteristics, formation, uses - ZME Science
2024年1月8日 · Shale is a fine-grained sedimentary rock, composed mostly of clay particles and other minerals such as quartz and calcite. It is formed of many thim mineral layers and is typically characterized...
X-ray tomography imaging of shale microstructures: A review …
2021年1月1日 · Shale microstructure is typically used to analyse the sedimentary depositional environment and the associated diagenesis (Ma et al., 2017a). This can be accomplished by resolving the arrangement and distribution of the volume fractions of the various constituents (minerals, organic matter, and pores) and their connectivity and orientations.
Shale Rock: Geology, Composition, Uses - ThoughtCo
2020年8月2日 · Shale is the most common sedimentary rock, accounting for about 70 percent of the rock in the Earth's crust. Shale is a fine-grained rock made from compacted mud and clay. The defining characteristic of shale is its ability to break into layers or fissility. Black and gray shale are common, but the rock can occur in any color.
Frontiers | Characteristics of Shale Pores and Surfaces and Their ...
2021年10月21日 · In summary, shale pores and surfaces are complex, and their characteristics and properties change significantly according to the mineral composition and burial evolution. These complexities control the interactions between pore walls and confined fluids, and they must affect the shale oil mobility and production performance.
Evolution of mechanical properties of organic-rich shale ... - Nature
3 天之前 · Shale samples. The original shale has a high TOC (12.01 wt%) and an OM type of II 1, and a low vitrinite reflectance (R o) value of 0.55%.It is at an immature stage and is very suitable for ...
Geochemical and Microstructural Characterization of Shale Rock: …
6 天之前 · Ductile shale interval of higher clay minerals and specific surface area tends to form a sealing barrier around cased wells, compared to brittle ones. (39) Secondary pores caused by dissolution of carbonates, grain detachment, and clay swelling also contribute to the ductile behaviors of shales.