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Xystridura glacia Palmer and Gatehouse, 1972.Xystridura glacia faunule (early Middle Cambrian), boulder from moraine, Mount Spann, NE Argentina Range, Antarctica.; Xystridura multilinia Palmer and Gatehouse, 1972.
Lithofacies may refer to: A mappable subdivision of a designated stratigraphic unit, distinguished from adjacent subdivisions on the basis of lithology; a facies characterized by particular lithologic features; The rock record of any particular sedimentary environment, including both physical and organic characteristics; cf: Lithotope
[citation needed] Facies based on petrological characters (such as grain size and mineralogy) are called lithofacies, whereas facies based on fossil content are called biofacies. A facies is usually further subdivided. The characteristics of the rock unit come from the depositional environment and from the original composition. Sedimentary ...
The earliest geological units found in the Western Block are formed in Neoarchean, [8] when the major crustal accretion and reworking took place. [10] The Neoarchean rocks in the Precambrian basement are mainly composed of greenstones, high-grade metamorphic rocks and granitoids. [16]
Palaeogeography (or paleogeography) is the study of historical geography, generally physical landscapes. [2] Palaeogeography can also include the study of human or cultural environments. [ citation needed ] When the focus is specifically on landforms , the term paleogeomorphology is sometimes used instead.
The most related to the shores, probably barrier-Lagoon and Delta depositional systems are clearly visible on the Smilów Quarry, where the exposure shows different lithofacies and strata, including fine-grained, white and light-grey Sandstones with Hummocky cross-stratification, with a series of tabular and trough Cross-bedding sets, probably ...
Paleogeography and paleoclimate of the Late Jurassic (150 Ma). The Tendaguru Formation is indicated by A1, the Morrison Formation with M1-6 and the Cañadón Calcáreo Formation with S1. The Tendaguru Formation was deposited in the Mandawa Basin , a post- Karoo , [ 6 ] Mesozoic rift basin located between the Ruvu Basin and Rufiji Trough to the ...
Animation of the break-up of the supercontinent Pangaea and the subsequent drift of its constituents, from the Early Triassic to recent (250 Ma to 0).. This is a list of paleocontinents, significant landmasses that have been proposed to exist in the geological past.