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Microfacies Analysis of the Natteik Limestone Formation

Abstract The Natteik Limestone Formation (Middle Triassic) is locally exposed in Shan State (south). Microfacies types presented here are based on thin section analysis of 380 samples from outcrops of Hsai Hkao - Papan area. Eleven microfacies were recognized on the basis of the presence and proportion of microfauna (radiolarian, foraminifer, sponge spicules, bivalve and ostracods) and nonskeletal (peloids and intraclasts) components. The observed microfacies indicate low- to high-energy environments, from fore slope to basin depositional settings. Soft sediment slumping…...

Monogenetic Volcanics

The transitional relation between the lapilli-bombs agglomerates and clastogenetic lava (Fig.12B)proposes that theemitted lava blebs for each lava was virtually continuous throughout a singlefountains episode. Likewise, each eruptive unit has its own cooling joints.The occurrence of inversely coarse-tail-graded beds, poorly defined bedding, lithic clasts and lapilli/bombs-rich concentration zones are indicative of an emplacement of the lateral flow, akin to pyroclastic density currents forming spatters ( Freundt and Schmincke, 1995; Valentine et al., 2000). Occasionally, the record of flow laminations, flattened…...

Faults, Folds and Maps of Geology

There are different phenomena happening in the earth’s crust and some of those are the occurrence of folds and faults. Both phenomena are caused by forces like tension and compression. Folds are bends in the rock surfaces while Faults are fractures in the earth’s crust which allows blocks of rocks to move relative to one another. When this movement becomes rapid, it results to earthquakes ("What is a fault? ," 2008). Since there are two blocks of rocks involved in…...

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Is porlock bay affected by longshore drift?

Aims To investigate coastal processes along Porlock Bay, Exmoor National Park. To make a comparison of coastal management schemes inside & outside Exmoor National Park. Introduction As part of our geography coursework project we had to travel to somerset, Nettlecombe on the 9th July 2009. Our study is on coastal processes and management at Porlock Bay. During our stay in Somerset we visited many places, which include Porlock Bay, Hurlstone point and Porlock Weir where. During the weekend we also…...

Trampling Survey

When we were carrying out the trampling survey, we realised that good parts of the survey were that it did give us a general ides of what the surface consisted off in that area. It also gave us an idea of weather the surface had anything present on it that should not be & weather this was an indication of erosion. It also gave us an idea of how well the site was managed. Overall this was the correct method…...

The Naze cliffs

All along the exposed side of the Naze cliffs, and to a smaller extent on the managed areas, erosion is constantly taking place. These are as such: Slumping The Naze cliffs are made up in layers. The base off the cliffs is a thick layer of very soft but impermeable London clay. Sitting on top of this are two permeable layers. The first is the Red Crag. This is made of reddish coloured sand and shells, which are the remains…...

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