Lithostratigraphy, depositional facies architecture, and diagenesis of upper Pliocene to Holocene carbonates in northern Belize are evaluated based on a ca 290 m, continuous section of samples from a well drilled on Ambergris Caye that can be linked directly to outcrops of Pleistocene limestone, and of overlying Holocene sediments. Upper Pliocene outer-ramp deposits are overlain unconformably b...

the komshecheh barite-fluorite deposit is the product of epigenetic hydrothermal mineralizationin dolomitized limestone of middle triassic age. the deposit is structurally and lithologically controlled andoccurs predominantly as bedded stratabound replacement sheets, although the veins and solution-collapsebreccias constitute important modes of occurrence. brecciation, dolomitization, silicific...

Carbonate-hosted Mn deposits are widespread in North Africa with most of the ores being hosted by Mesozoic dolomitic formations Moroccan Atlasic system. The Bou Arfa Mn(-Fe) deposit described herein is located eastern High Atlas, close to Front, and has accounted for production ~2 Mt ore grading from 33 82% Mn. mineralization occurs within Sinemurian flat-lying dolostones as stratabound karst-f...

The Ediacaran Period (ca. 635–541 Ma) witnessed the earliest paleontological evidence for macroscopic animals (i.e., Ediacara biota) and geochemical observations of largest carbon cycle anomaly in Earth history Shuram Excursion, SE). Numerous hypotheses have been proposed origins SE, ranging from primary seawater to syn- or post-depositional diagenesis. Despite intensive theoretical work publis...

Carbon, sulfur and oxygen isotope profiles in Silurian strata of the Baltoscandian Basin (Estonia), coincident with Ireviken Bioevent, provide insights into basin-scale platform-specific depositional processes. Paired carbon records preserve a positive excursion during early Wenlock, faunal turnover, yet ?13C variability this compared to other locations within paleobasin reflects local influenc...

Evidence of hydrothermal activity is reported for the Mesozoic pre- and syn-rift successions western Adriatic palaeomargin Alpine Tethys, preserved in Western Southalpine Domain (NW Italy). The products processes are represented by vein breccia cements, as well dolomitization silicification host rocks. In eastern part study area, interpreted necking zone continental margin, Middle Triassic dolo...

The new exposure of the Upper Muschelkalk clays and dolomites located south Kalety (Tarnogórski District, Silesia, Poland) provided numerous remains vertebrates represented by teeth, scales, long bones, coprolites. Despite influence hydrothermal processes leading to dolomitization Zn-Pb deposit formation, preservation fossil is good. taxonomic diversity accumulation vertebrate debris in dolomit...