Fault-related dolomitisation is responsible for the development of numerous hydrocarbon reservoirs hosted in diagenetically-altered carbonates and therefore critical to exploration, subsurface storage (i.e. CO2), formation associated mineralisation MVT-deposits) understanding key controls on fluid flow. Multiple dolomitised outcrop analogues have been characterised recent years, but uncertainty...

A Hildoglochiceras -rich horizon is reported from a thin carbonate intercalation within the siliciclastic Upper Jurassic Jhuran Formation of Jara Dome, western Kachchh Mainland. The specimens have been used for first population-level study genus based on multivariate analysis. High phenotype instability in large sample confirms occurrence transient forms between morphospecies. Key morphological...

In our ongoing studies of both extinct and extant hermit crabs (Paguroidea Latreille, 1802), we have observed recorded a number morphological changes that taken place between Early Jurassic times (c. 185 million years ago) the present day. Species compositions paguroid assemblages from marine Upper Lower Cretaceous rocks in Europe are here compared with those modern settings. Basal paguroids cy...

Abstract Considering the evolution of aeolian to marine transitions for geological record, either catastrophic or gradual transgressive scenarios showing high low rates coastal migration have been proposed. A critical evaluation modern analogues suggests that a transgression shares many characteristics with Holocene transgressions, yet they are caused by different sea‐level rise. The present st...

The Ksar Metlili Formation, from the Jurassic – Cretaceous transition (Tithonian Berriasian) of eastern High Atlas Mountains, Morocco, has yielded one richest microvertebrate assemblages Mesozoic Gondwana. With at least 19 species, mammaliaforms are particularly diverse. ‘Dryolestoidea’ most abundant and diverse; nevertheless, only Donodon perscriptoris Sigogneau-Russell, 1991a, monotypic Donod...

Glauconite is an authigenic mineral reputed to form during long-lasting contact between a nucleus (a pre-existing phyllosilicate) and seawater. This protracted makes it possible subtract the ions necessary for construction of neoformed phyllosilicate, here, glauconite very close illite, rich in K Fe). As result, often associated with sediments deposited transgressive context strong slowdown rat...