Authigenic, principally syngenetic minerals in sedimentary rocks, their characteristics, conditions of formation .

Authigenic, principally syngenetic minerals in sedimentary rocks, their characteristics, conditions of formation ,. . 1. Silica group ,. '. Opal . The book by no means pretends to be a determinative atlas of the authigenic minerals in sedimentary rocks; its task is to draw the reader's attention to questions of origin and, at the same time, to equip him with systematic knowledge about the physical and, especially, the optical properties of these minerals.

Authigenic Minerals in Sedimentary Rocks, is designed for the broad circle of lithologists, and also for the geologists and geochemists who are studying sedimentary rocks and ores. Its specific purpose is to stir up interest among lithologists and geologists in the geochemical. Authigenic Minerals in Sedimentary Rocks, is designed for the broad circle of lithologists, and also for the geologists and geochemists who are studying sedimentary rocks and ores.

Authigenic minerals in sedimentary rocks. We shall not take space here to describe minerals present in sedimentary rocks as fragmental grains and derived from weathered igneous or metamorphic rocks (clastic quartz and feldspars, micas. More)

Authigenic minerals in sedimentary rocks. More). Authigenic minerals in sedimentary rocks : Authorized translation from the Russian. Oil, gas, and bitumen in igneous and metamorphic rocks. On the origin of sedimentary dolomites.

This book deals with sedimentary sulfides which are the most abundant authigenic minerals in sediments. Special emphasis is given to the biogeochemistry that plays such a central role in the formation of sedimentary sulfides

This book deals with sedimentary sulfides which are the most abundant authigenic minerals in sediments. Special emphasis is given to the biogeochemistry that plays such a central role in the formation of sedimentary sulfides. It will be of interest to scientists in a number of disciplines, including geology, microbiology, chemistry and environmental science.

Authigenic minerals in sedimentary rocks are good. Authigenic minerals of Meso-Cenozoic and sedimentary rocks of marginal seas bottom of the northwestern Pacific have been studied. indicator of. depositional. Indicative properties have: a) minerals-corrensite, rectorite, opal-C/T, smectite; b) nic calcite and quartz-illite.

Sedimentary rocks are types of rock that are formed by the accumulation or deposition of small particles and subsequent cementation of mineral or organic particles on the floor of oceans or other bodies of water at the Earth's surface. Sedimentation is the collective name for processes that cause these particles to settle in place. The particles that form a sedimentary rock are called sediment, and may be composed of geological detritus (minerals) or biological detritus (organic matter).

Authigenesis is the process whereby a mineral or sedimentary rock deposit is generated where it is found or observed. Such deposits are described as authigenic. Authigenic sedimentary minerals form during sedimentation by precipitation or recrystallization instead of being transported from elsewhere (allogenic) by water or wind. Authigenic sediments are the main constituents of deep sea sedimentation. Authigenic clays tend to reduce the porosity of sediments, thus reducing permeability.

Authigenic sediment, deep-sea sediment that has been formed in place on the seafloor. The most significant authigenic sediments in modern ocean basins are metal-rich sediments and manganese nodules. Metal-rich sediments include those enriched by iron, manganese, copper, chromium, and lead.