The Alborz coal basin is located in northern part of Iran. The coal deposits of Shahrood in eastern Alborz, Zirab in central Alborz and Abyek in western Alborz were studied as typical coalfields of the basin. Shemshak Formation which is the main coal-bearing sequence was formed during the Triassic-Jurassic in the basin. It consists of sandstone, siltstone, shale and claystone, which variedly al...

Isotopic compositions of sulfur and concentrations of sulfur and carbon have been measured for sedimentary rocks across terrestrial Cretaceous-Tertiary (K-T) boundary successions that originated from flood-plain and backswamp environments. Organic carbon contents are relatively constant below the boundary (26 cm for the Dogie Creek section and 9 cm for the Brownie Butte section), but change abr...

A gravel pit in south central Stearns County, Minnesota exposes sand and gravel of the Merden Lake esker which is thought to have been deposited by a subglacial stream associated with the Wisconsinan-aged Superior Lobe of the Laurentide ice sheet. An analysis of these sediments was conducted from samples collected through a vertical trench on an east-facing exposure of the gravel pit. A total o...

Abstract The first detailed mapping and recording of nannofossils was carried out on Kei Besar Island, Southeast Maluku. This area is mostly composed the Elat Formation, which mainly by intercalated calcarenite calcareous claystone. Total 48 samples were taken three measured sections (Hollat, Ngurdu Mata Hollat). Samples prepared using smear slide method, then observed under a polarized microsc...

Abstract The French National Radioactive Waste Management Agency (Andra) is in charge of studying the disposal high-level and intermediate-level long-lived waste (HLW ILW-LL) a deep geological repository (Cigéo project) within host formation Callovo-Oxfordian claystone (COx). heat emitted from packages induces thermo-hydro-mechanical (THM) coupling structural elements rock. This study focuses o...

Fracture network modelling and a hydrological evaluation were performed in well more than 900 m deep that penetrated the Boda Claystone Formation, potential host rock for high-level nuclear waste disposal facilities Hungary. The fracture geometry was generated with discrete algorithm, which permeability porosity of system can be calculated if aperture fractures is known. estimated via an calibr...