The Middlebury Formation is a Middle Ordovician limestone deposited on the margin of Laurentia during the collision of the Ammonoosuc Arc with Laurentia. Tectonic processes such as subsidence can have an effect on the forearc basin morphology such that the sedimentation in the basin is influenced and the stratigraphy will reflect such tectonic processes. The purpose of this study is to examine ...

Objective: The Asmari Formation is characterised by alternation thick carbonate and marl sequence of the Oligocene- Miocene in the Zagros Basin, southwest of Iran that were deposited on the shelf of Eastern Paratethys. Methods: This formation is exposed at Tang-e-Khoshk in the Fars subcoastal zone with a thickness of 286 m comprising alternation of medium and thick to massive bedded carbonates,...

Kudz Ze Kayah (KZK) and Wolverine are volcanogenic massive sulphide deposits hosted by Early Mississippian meta-rhyolites, marine metasedimentary rocks and intermediate to mafc metatuffs of the Yukon Tanana Terrane in the Simpson Range, southern Yukon (Figure I). This project aims to pinpoint, within central northern B.C., stratigraphy favorable to the formation of Early Mississippian volcanoge...

Introduction Late Jurassic-Early Cretaceous evolution of the northern Alaska continental margin Stratigraphy The Kemik Sandstone General Discussion Case 1: Structural traps containing Kemik Sandstone Case 2. Stratigraphic traps associated with barrier island model Case 3. Stratigraphic traps associated with shelf sandstone model Reservoir Quality Play Concept Thomson sandstone (local usage) Gen...

We compare high-resolution pollen and chironomid records from the last 15,000 yr in Laguna Facil, southern Chile. Major vegetation and chironomid changes are recorded between ca 14,900 and 14,700 cal. yr BP. During the Lateglacial, changes in the chironomid stratigraphy lag behind changes in the pollen stratigraphy suggesting that the chironomids are responding to changes in the tree canopy or ...

This study is focused on the biostratigraphy, sedimentary environments, facies distribution, and sequence stratigraphy of the Coniacian–Santonian sediments of Tange-Bulfaris section. Five assemblage zones have been recognized by distribution of the foraminifera in the study area. Assemblage zone 1(Chara Ostracods zone) is Coniacian in age and occurs in the lower part of the succession. Assembl...

The stratigraphy of the South-Pole Aitken basin (SPA) interior is consistent with that of a massive impact melt sheet that differentiated to form cumulates. Spectroscopic and geophysical constraints on the stratigraphy of SPA suggest a 12.5 km thick layer of norite above ultramafic pyroxenite and dunite layers. A similar stratigraphy is produced from differentiation by crystal settling of a 50 ...

objective: the asmari formation is characterised by alternation thick carbonate and marl sequence of the oligocene- miocene in the zagros basin, southwest of iran that were deposited on the shelf of eastern paratethys. methods: this formation is exposed at tang-e-khoshk in the fars subcoastal zone with a thickness of 286 m comprising alternation of medium and thick to massive bedded carbonates,...