Records of shallow-marine ramps with the mixing carbonate and siliciclastic sediments are common throughout geological time. All these records have pure deposits as end members, occurring contemporaneously in distinct depositional regions along ramp, transitional hybrid facies between them. The two member can mix different scales alternate time due to climatic changes regressions transgressions...

Quaternary deposits of the Midyan coast Saudi Arabia include coral-bearing limestones interbedded with sheet-flow siliciclastic sands and gravels, interpreted as braid-delta fan deposits. The their contained faunas provide evidence periodic local stabilization gravel surfaces effective starvation supply. Some indicate growth deposition in waters a metre or so deep whereas others were substantia...

The El Escorial marbles (Cushamen Metamorphic Complex) along with amphibolites form metamorphic septa within the permian granitoids of Mamil Choique Formation (261-286 Ma). metamorphism, determined in granulite facies migmatic gneisses cropping out 120 km southwest Escorial, occurs at 311 ± 27 Ma (CHIME method monazite). are calcitic (calcite > 95%, R.I.: 0.5 to 2.5%) and show 87Sr/86Sr valu...

-The Ordovician Radiation exhibited a global transition in dominance from the Cambrian evolutionary fauna (e.g., trilobites), to the Paleozoic and Modern faunas (e.g., articulate brachiopods and bivalve molluscs). Although its causes have yet to be determined definitively, the transition coincided with increased global tectonism. Erosion of source areas uplifted during orogenic activity increas...

Mixed carbonate-siliciclastic platforms developed in the onshore and offshore zones of several basins along Amazonian coast starting Palaeocene. The shutdown Miocene carbonate accumulation distinct tectonic settings shows different evolutionary histories Eastern coast. has been attributed to abundant siliciclastic fluvial inflow from Andean Amazon River during late Miocene. combination previous...

In this paper we describe a technique based on radio frequency plasma treatment in H2O vapour to reproducibly clean and modify the surface energy of clastic and carbonate core material allowing the establishment of well defined wettability conditions. We present micro-tomographic observations of the pore-scale fluid distributions in strongly water wet clastic and carbonate cores. We then establ...

tirgan formation with lower cretaceous age (barremian-aptian) in the kopet-dagh basin consists of carbonate and siliciclastic rocks (calcareous shale and sandstone) which conformably lay between siliciclastic rocks of shurijeh formation below, and marly sarcheshmeh formation at the top. in this study, tirgan formation in two stratigraphic sections of abgarm (77 m in thickness) and sirzar (46 m ...

Comparatively little work has been carried out on the morphology and distribution of submarine landslides mixed carbonate-siliciclastic margins. The morphometric analysis 84 open slope Great Barrier Reef (GBR) margin north-eastern Australia provides useful insights into failure dynamics frequency Our revealed that area affected by failures (12.6% margin) is similar to siliciclastic-dominated pa...