The dissolution kinetics of different varieties natural gypsum samples with porosity and content insoluble impurities are experimentally investigated under unsaturated conditions. main goal this work is to verify whether how the petrophysical petrographic nature influence its rate. Gypsum were taken from Priabonian (Ludian) Lutetian formations located in north-eastern suburbs Paris, where devel...

Age and paleoenvironment of part the Damlouk Member, Ratga Formation from a surface section in Iraqi Western Desert are investigated. Twenty-nine species Larger Benthic Foraminifera (LBF) belonging to 13 genera recognized studied section. The LBF assemblage is dominated by following groups, Nummulites, Alveolina, Rotalia, Lockhartia. Two corals with fragments bryozoan, red algae mollusca had al...

The rise of the Andes and associated propagation retroarc foreland basin during Mesozoic Cenozoic in western South America shaped paleogeography paleoenvironmental settings Western Amazonia. Much attention has been paid to Neogene evolution Amazonian Basin, but few studies have investigated detail paleoenvironments Amazonia Paleogene. We present a multi-proxy study that includes new biostratigr...

The Eocene platform deposits in the Moroccan Ghomarides have been studied. These marine carbonate platforms were located westernmost Tethys approximately 30°N and 0°–10°W during Cuisian to Bartonian. study includes observations from fossiliferous assemblages (such as larger benthic foraminifera colonial corals), their palaeoenvironment well rock texture fabric. Eight microfacies identified that...

The fossil otoliths of the southern USA have been known for more than 130 years and are among richest assemblages worldwide. However, previous studies often scattered with outdated systematic scheme. A collection over 25000 ranging in age from Lutetian to Priabonian 47 sites five states eastern is analysed here. Combined earlier described material, at least 101 otolith-based taxa documented, wh...

The mangrove communities of the Caribbean region are considered descendants former pantropical Late-Cretaceous mangroves that underwent regional differentiation after tectonic closure Tethys Sea. southern area has been cradle Neotropical mangroves. These inferences were based mainly on qualitative evidence, such as presence/absence fossils showing botanical affinities with present-day taxa. How...

[This corrects the article DOI: 10.1371/journal.pone.0181712.].

Discussions continue about whether Middle Eocene magmatism in the Eastern Pontides is associated with collision or subduction. This paper presents new whole-rock geochemistry, Sr-Nd isotopic and 40Ar-39Ar age data for volcanic rocks from Bayburt area of (NE Turkey) to investigate their sources evolutionary history. The 40Ar–39Ar ages reveal that these erupted between 44.6 ± 0.1 Ma 43.5 Ma, with...

The debate about whether Eocene magmatism is considered to be post-collisional or subduction-related not still continues. Here we offer new 40 Ar- 39 Ar ad U-Pb zircon geochronology, mineral chemistry, bulk rock and Sr-Nd-Pb isotope geochemistry data obtained from the southern dike (SD) suite, in comparison with northern (ND) Eastern Pontides. geochronological indicate that SD suite erupted bet...