Permian Sedimentary Rocks

Hjelle and Winsnes (1972) described sedimentary rocks of the Amelang Formation (Section 14.1) at Fossilryggen which consists of a narrow ridge, 2 km long, and a small nunatak located about 30 km east of the main trend of Vestfjella (Fig. 14.9). The sedimentary rocks are 43 m thick and consist of cross-bedded quartz sandstone (25 m) overlain by interbedded siltstones and quartz sandstone some of which contain coarse worm tracks and large sandy concretions. 

The presence of Permian sedimentary rocks at Fossilryggen demonstrates that non-marine Beaconlike sedimentary rocks were deposited in Queen Maud Land and that these kinds of rocks are not restricted to the Beacon Supergroup of the Transantarctic Mountains. Therefore, the sedimentary rocks at Fossilryggen fill a gap between the Beacon Supergroup of Antarctica and the Karoo Group in southern Africa and thereby reinforce the juxtaposition of these continents prior to the break-up of Gondwana. 

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The Lower Permian deposits are represented by intercalation of gypsified dolomites and gypsums with spare interlayers of sand rock and siltstones (thickness from 80 to 115 m). Above it, with the erosion, Middle Permian sedimentary rocks are deposited. Carbonate rock here is represented by marls, lime dolostones and dolomitic limestones, mostly organogenous, but sometimes silicified. Carbonate members are alternate with terrigenous members (sand rocks, siltstones, clay) and make, as a whole, till 75% from the volume of Middle Permian (Shevelev 2012). 

Central and Eastern England is almost entirely underlain by sedimentary rocks that young from west to east. Four major geological sub-divisions are presented in Figure 1. Permian and Triassic mudstone and sandstone dominate the East Midlands and parts of Yorkshire Jurassic clays crop out within the centre of the study area and Cretaceous chalk underlies most of Central East Anglia. 

Southwestern Guizhou Province is underlain by an extensive thick volume of Upper Paleozoic and Lower Mesozoic sedimentary rocks. The Permian strata, although areally much less extensive, contains coal-bearing argillaceous sedimentary rocks of the Longtan Formation (Fig. 17.2). Southwestern Guizhou Province and... 

After a lengthy period of uplift and erosion, sedimentary rocks of Permian age described by Long (1965) were deposited on the Kukri Peneplain which formed by erosion of the rocks of the Ross orogen. 

Fig. 8.8 The basement rocks of the Neptune Range in the Pensacola Mountains consist of the isoclinally folded metasedimentary rocks of the Hannah Ridge Formation (defined by Rowell et al. 2001) which is unconformably overlain by the Nelson Limestone (late Middle Cambrian) followed by the Gambacorta Rhyolite and the Wiens Formation (Cambro-Ordovician). These basement rocks were locally intruded by the Serpan Granite and by the hypabyssal Mount Hawkes Porphyry. The Paleozoic sedimentary rocks include the Gale Mudstone which is a trUite of Permian age which resembles the Buckeye Tillite of the Beacon Supergroup in the Ohio Range of the Horlick Mountains (Adapted from Schmidt and Ford 1969 with information from Stump 1995)...

AtMt. SaltonstallandMt. Innes-TaylorinFig. 10.19 Doumani and Minshew (1965) found boulders of greenish tillite in the moraines on the northern slopes of these mountains. The tillite contains faceted and striated pebbles and cobbles of metamorphic, granitic, and sedimentary rocks and resembles the Buckeye Tillite of the Horlick Mountains. These boulders were presumably transported and deposited by the Permian ice sheet although tillite is not present in outcrop at these locations. 

Uranium districts related to Permian sedimentary cover rocks... 

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