Calcium carbonate is a chemical compound with the formula CaCO 3 formed by three main
elements: carbon, oxygen, and calcium. It is a common substance found in rocks in all parts …

The kaolinite-group minerals kaolinite, dickite, nacrite, halloysite including its metaform and
their associates allophane and imogolite are phyllosilicates characterized by a rather simple …

The lacustrine carbonate rocks of the giant Pre-salt oil-fields in the Santos and Campos
Basins differ in a number of important aspects from classic lake deposits. Prior work has …

This textbook outlines the physical, chemical, and biologic properties of the major
sedimentary rocks, as revealed by petrographic microscopy, geochemical techniques, and …

Carbonate build-ups in lakes, hydrothermal and fluvial settings are characterized by
distinctive geometry, spatial distribution, fabrics and geochemical signature but also by …

Carbonate sediments and rocks are valuable archives of Earth's past whose geochemical
compositions inform our understanding of Earth's surface evolution. Yet carbonates are also …

The Aptian lacustrine carbonates of the Barra Velha Formation, offshore Brazil, have
undergone a highly unusual paragenetic and diagenetic history and present significant …

The Late Devonian mass extinction event near the Frasnian/Famennian (F/F) boundary has
been analysed using conodont biostratigraphy and biofacies, sedimentology, magnetic …

Abstract The Sarvak Formation (Cenomanian–Turonian) forms one of the main reservoir
rocks in many oilfields in southern Iran. Extensive lateral and vertical facies variations as …

The giant Aptian reservoirs and associated lacustrine rocks of the South Atlantic pre-salt
section present a series of unique characteristics, which make the systems created for …