Diorite : Properties, Formation, Composition and Uses - Geology …
2023年8月21日 · Diorite is a coarse-grained, intermediate igneous rock that forms from the cooling of magma deep beneath the Earth’s surface. It is composed of plagioclase feldspar, hornblende, and other minerals, and has a speckled texture and gray color.
How Porosity Increases During Incipient Weathering of …
2015年1月1日 · A study of samples of quartz diorite from the Luquillo Critical Zone Observatory in the Luquillo Experimental Forest provides the most detailed published information on porosity development during initial weathering of felsic rocks in a setting where many other water and soil fluxes have been measured (Navarre-Sitchler et al. 2013).
Diorite - Wikipedia
Diorite is an intrusive igneous rock with moderate silica and low alkali content, intermediate between gabbro and granite. It forms by slow cooling of magma and has the same composition as andesite, a volcanic rock. It is used for sculptures and building stone in many civilizations.
Basic weathering characteristics of diorite (*). Note that the ...
Laboratory test results demonstrate that progressive rock weathering has remarkable influences on the dry density (ρd), effective porosity (ne), pulse wave velocity (Vp), uniaxial compressive...
The chemical, mechanical, and hydrological evolution of weathering ...
2016年6月22日 · Detailed observations from Monterey Peninsula indicate that the myriad complex and linked chemical, mechanical, and hydrologic processes can conspire to moderate rock weathering in ways that strongly depend on the type and structure of the rock initially present, as well as its evolving weathering path through changing climatic conditions.
Investigation of in situ weathering of quartz diorite bedrock in …
2003年12月30日 · Most rock weathering within the Rio Icacos basin weathers in 0.5–1.5 m thick zones of porous rock herein referred to as “rindlet systems.” These systems have a spheroidal weathering structure, characterized by planar, onion-skin-like rindlets 3–10 cm thick.
Diorite: Igneous Rock - Pictures, Definition & More - Geology.com
Diorite is a coarse-grained igneous rock with a composition between granite and basalt. It forms by the mixing of magmas or melting of granitic rock and has a "salt and pepper" appearance of white plagioclase and black hornblende.
On the variations of geo-engineering properties of dunites and …
2016年10月7日 · This study compares the variations of discontinuity, physical and mechanical properties of dunites and diorites with different weathering grades. It shows that serpentinization and microcrack formation are the main factors affecting the geo-engineering properties of dunites, while microcrack increase is the dominant feature for diorites.
Weathering of the Rio Blanco quartz diorite, Luquillo Mountains, Puerto ...
2008年9月15日 · In the mountainous Rio Icacos watershed in northeastern Puerto Rico, quartz diorite bedrock weathers spheroidally, producing a 0.2–2 m thick zone of partially weathered rock layers (∼2.5 cm thickness each) called rindlets, which …
Investigation of in situ weathering of quartz diorite bedrock in …
2003年12月30日 · A new watershed-scale solute mass balance corroborates earlier studies and yields an overall reaction stoichiometry that closely resembles complete weathering of the rock (except quartz and biotite) to kaolinite and Fe 3+ oxides.
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