The sedimentology and palaeogeography of some Devonian sedimentary rocks in southwest Ireland

Landslides occur when the slope is composed of water-bearing and water-resistant rocks. Large blocks hard rocks (block landslides) individual can move. The speed landslides different. Some cover a distance about 100 m per year, others move much faster are dangerous natural phenomena that residential buildings outbuildings lead to human casualties. By origin, distinguished: seismogenic, caused b...

the sorkh shale formation (lower triassic) crops out in parts of tabas block. this formation is composed of limestone, dolomite, sandstone, shale and gypsum. its lower contact with the permian rocks and its upper contact with the shotori formation is marked by distinct erosional unconformity. to determine the depositional environments of the sorkh shale formation, stratigraphic sections of goda...

 Igneous Rocks form from the solidification of molten rock. Intrusive igneous rocks are composed of crystals that are large enough to be seen with the naked eye because these rocks cooled slowly, deep within the Earth thereby allowing time for the crystals to grow. In contrast, extrusive (volcanic) igneous rocks cool very quickly after they erupt from a volcano, and so are composed of microsco...

The paper discusses the factors that limit growth of coal production in Kuzbass. They were identified by results statistical analysis actual indicators working faces eight thick seams. Technological solutions for rational control hard-to-break roof rocks, shape and size pillars, which ensure stability protected workings isolation worked-out area from endogenous fires, are substantiated.

Introduction: Shocked rocks are known from various planetary bodies of the solar system including Earth, Moon, Mars, and several types of asteroids. It was first recognized on Earth that stages of progressive shock metamorphism can be defined [1,2,3,4] and this concept was later on confirmed for lunar rocks [5] and meteorites [6,7,8]. Initiated by the IUGS “Subcommission on the Classification o...

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Since 1905, when they were annexed by Japan’s Shimane prefecture, Liancourt Rocks—known as Dokdo by the Koreans and as Takeshima by the Japanese—have been a sticking point in relations between the two countries. Although South Korea has had effective control over the islets since the 1950s, Japan continues to contest those claims. More recently in the 2000s, several incidents have served to agg...

analytical results of 11 groundwater samples are used to evaluate the quality of groundwater in the hastijan area, (central province –iran). the main indices of water, ions physicochemical characteristics and the important heavy metals concentration studied. to estimate of water quality, piper, ghibbs, schoeller and wilcox diagrams, sodium absorption ratio, color-alkalinity and saturation index...