Abstract The Permian–Triassic mass extinction (PTME) is not only a dramatic loss in biodiversity and major change in ecosystem structures, but also coincided with the formation …
This textbook outlines the physical, chemical, and biologic properties of the major sedimentary rocks, as revealed by petrographic microscopy, geochemical techniques, and …
HS Chafetz, RL Folk - Journal of Sedimentary Research, 1984 - pubs.geoscienceworld.org
Investigation of travertine accumulations throughout central Italy and the west-central US has shown that the carbonate is precipitated in response to both inorganic and organic …
RI Dorn - Treatise on Geomorphology: Volume 1-14, 2013 - asu.elsevierpure.com
Fourteen different types of coatings cover rock surfaces in every terrestrial weathering environment, altering the appearance of the underlying landform. Some accretions …
Ooids are one of the common constituents of ancient carbonate rocks, yet the role that microbial communities may or may not play in their formation remains unresolved. To search …
Ooids are enigmatic concentrically coated carbonate sand grains that reflect a fundamental mode of carbonate sedimentation and inorganic product of the carbon cycle—trends in their …
Ooid size in natural systems can be predicted based on the expected equilibrium between precipitation and abrasion rates. Therefore, ooid size distributions may enable quantitative …
Recent discoveries of geyserite and siliceous sinter with textural biosignatures in the∼ 3.5 Ga Dresser Formation of the Pilbara Craton, Western Australia, extended the record of …