The end-Permian extinction and its aftermath altered carbonate factories globally for millions of years, but impact on platform geometries remains poorly understood. Here, the evolution in architecture composition two exceptionally exposed platforms Nanpanjiang Basin are constrained compared with geochemical proxies to evaluate controls geometries. Geochemical indicate elevated siliciclastic nu...

Carbonate sediments may be cemented by a variety of forms of aragonite. calcite. or dolomite. The mineralogy of the cement has been regarded by most investigators as the product of the physico-chemical environment within the sediment at the time of cementation. This has been a reasonable working hypothesis until it was recently demonstrated that many different kinds of cement may occur in beach...

The well-known fossiliferous and lithologically variable Middle Devonian Shaly-Calcareous Skały Formation in the Łysogóry Region (northern part of Holy Cross Mountains, central Poland) was studied for first time terms elemental geochemistry, carbon isotope stratigraphy limestone microfacies. Three Lower to Givetian marly-limestone successions, exposed at Miłoszów, represent middle outer facies ...

The continental shelf of Northwest Australia hosts an extensive tropical carbonate ramp that forms important template for the interpretation similar systems in sedimentary record. Yet, little is known about its development from middle to late Quaternary, a period high frequency glacioeustatic changes sea-level and climate. This research describes core seismic-reflection data mid-ramp outer tran...

The Ediacaran-Cambrian transition interval is described for the west part of Gondwana Supercontinent. This key in Earth’s history recorded upper and lower Tagatiya Guazú Cerro Curuzu formations, Itapucumi Group, Paraguay, encompassing a sedimentary succession deposited tidally influenced mixed carbonate-siliciclastic ramp. remarkable presence cosmopolitan Ediacaran shelly fossils treptichnids, ...

Microbially induced calcium carbonate precipitation (MICCP) is a naturally occurring biological process in which microbes produce inorganic materials as part of their basic metabolic activities. This technology has been widely explored and promising with potential in various technical applications. In the present review, the detailed mechanism of production of calcium carbonate biominerals by u...

Abstract Understanding the causes of formation hardgrounds provides insights on oceanographic evolution a basin. Phosphate-rich hardground interrupted carbonate ramp deposition in Mediterranean during Miocene. We analyzed εNd record three central to identify origin phosphate-rich waters that formed them within frame Miocene paleoceanographic evolution. The Nd isotopes suggest eastern deep were ...