cheshmeh-konan area is located ~15 km northwest of tasuj, east-azarbaidjan province. the most important lithologic units of the area are red sandstones, green-gray sandstones, shale, and marl (miocene). based on field evidence and petrographical investigations, the host sediments were deposited in a peritidal setting associated with a sabkha-type environment. copper mineralization in the area o...

The Murray formation represents fine-grained sedimentary deposition in lacustrine environments within Gale crater, Mars. Both the overall thickness of and its broad uniformity character suggest potential for a long-lived, groundwater-supported lake system. Rock textures were imaged by Mars Hand Lens Imager camera at Pahrump Hills location, which lowermost formation. We analyze data from to refi...

On continental margins, oxidation of methane-rich fluids from the sediment often leads to formation of authigenic carbonate pavements on the seafloor. The biogeochemical processes involved during this carbonate precipitation are increasingly understood, but little is known about the duration or mode of carbonate crust formation. Here, we report uranium and thorium concentrations and isotope com...

The X Formation, which dates from the Late Cenomanian to early Turonian, is largest carbonate reservoir in Iraq's South Mesopotamian Basin. There are two shallowing-up depositional periods it, begin with deep water mudstone associated wackestone, gradually shallows into rudist and dominated by big foraminifera shoals barriers, followed lagoonal intertidal facies. identification of five distinct...

In structurally-controlled dolomitization systems, there is a general consensus that the formation of dolostone-limestone transitions, termed here as “dolomitization fronts”, governed by either presence an ultra-low permeability zone (fluid barrier) or changes in potential and kinetics. However, actual processes controlling abrupt termination dolostone bodies, their corresponding morphology dim...

Though sedimentary mercury in marine sediments has been regarded as a geological indicator of volcanic activity based on volcanism is the dominant natural source Hg to oceans, influence diagenesis cannot be dismissed. Marine mudstone selected explore migration from syn-sedimentary stage diagenetic this review. mudstones undergo series significant transformation processes, including illitization...

At the Sidi Bouzid area located in Central Tunisia, Cenomanian-Turonian reservoir rocks are well outcropping, especially in the Jebel el Kébar and Meloussi areas. The present work confirms that these carbonate intervals constitute the lateral equivalent of the Early-Middle Turonian Biréno and Late Turonian-Coniacian Douleb reservoir Members which are included within the pelagic marls of the Tur...

Chapter one Outline and Scope of this thesis, gives a brief account of the aims and scopes of the study. Chapter two General Introduction, gives an overview of the topic of study for the LeCHE research training network: dairy farming – its effects in the past and the present, and how we can study this. The last part of this chapter describes the role of the current project within the network an...