Relative sea-level changes can dramatically alter coastal geomorphology and coastlines, which, in turn, fundamentally tidal regimes. The Great Barrier Reef (GBR) has undergone around 120 m of relative sea level (RSL) rise since the Last Glacial Maximum, ∼20,000 years ago (ka). Ooid grains (sand sized carbonate sediment) that formed shallow water (>5 depth) under prolonged hydrodynamics forcing ...

In some of the challenging digital rock applications trade-off between model resolution and representative elemental volume is not captured in a single satisfying minimum requirements for both aspects. wide range lithofacies found carbonate reservoir rocks, facies fall this category, where large pores, ooids or vugs, are connected by small scale porous structures that could have orders magnitud...

Sedimentary patterns and hydrodynamic transport processes on modern carbonate platforms in arid climates are understudied compared to humid-tropical climates. The Al Wajh platform – located the Arabian–African desert belt is a large land-attached Red Sea providing an excellent opportunity fill this gap. covers some 1800 km2 almost completely enclosed by 115 km long reef-shoal belt. More than 20...

Following the latest Permian mass extinction (LPME), ocean experienced turbulent conditions due to elevated temperatures during Griesbachian (Early Triassic). These adverse resulted in a prolonged delay biotic recovery. However, current understanding of sedimentological responses at that time these remains incomplete. The harsh led formation abnormal carbonate rocks (known as anachronistic faci...

The present study investigates the aggregate suitability and geochemical characteristics of limestone (LS) from Samana Suk Formation, Pakistan, for construction industry. With advent CPEC, demand materials has seen a manifold increase. Sheikh Budin Hills Trans Indus Ranges comprise huge deposits provide great potential source rocks in region. In Upper Basin Formation is acknowledged as most sig...

The enigma of the Bahamas is that this highly productive carbonate system has existed for at least 100 m.y., building a vast edifice of carbonates, thousands of meters thick, in an essentially nutrientpoor environment. Based on measurements of the insoluble material, the Fe and Mn in the carbonate fraction, and the d15N of the sedimentary organic matter, we suggest a paradigm shift in order to ...

Abstract. Today and in the geologic past, climate changes greatly affect have affected Earth surface processes. While climatic parameters today can be measured with high precision, they to interpreted from sedimentary record for ancient times. This review is based on detailed analysis of stratigraphic sections Oxfordian (Late Jurassic) age, aim reconstruct discuss that controlled sedimentation ...

The Dachstein platform was an extensive carbonate developed on the westernmost shelf of Neotethys during Late Triassic, now preserved in various tectonic units disrupted Alpine orogeny. Despite being focus a multitude sedimentological, paleontological and other studies, demise this remains controversial, with contrasting views timing causes cessation its growth, duration gap above, which at man...

Synchronized transitions in the polymorph mineralogy of the major reef-building and sediment-producing calcareous marine organisms and abiotic CaCO3 precipitates (ooids, marine cements) throughout Phanerozoic time are believed to have been caused by tectonically induced variations in the Mg/Ca ratio of seawater (molar Mg/Ca>2=“aragonite seas”, <2=“calcite seas”). Here, I assess the geological e...

Measurements of inherent optical properties (IOP) were conducted over bottoms with different substrates by use of a sampling package mounted on and operated by a SCUBA diver. It was found that in areas of low ambient currents the distribution of IOP varies with bottom type in (1) its value relative to a nearby bottom of different type, (2) its vertical gradient, and (3) its variability. This im...