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Tiberio Calcagni (1532–1565) was an Italian sculptor and architect. He was born in Florence , and accompanied Michelangelo to Rome, and was active about 1570. He completed or attempted to complete a number of his master's works after his death, including his Deposition .
The Torridon Group is a series of Tonian (lower Neoproterozoic) arenaceous and argillaceous sedimentary rocks, which occur extensively in the Northwest Highlands of Scotland. These strata are particularly well exposed in the district of upper Loch Torridon , a circumstance which suggested the name Torridon Sandstone , first applied to these ...
In the revised stratigraphic framework for the Proterozoic sedimentary rocks of the Highlands: the Stoer Group is part of a separate sequence whose deposition predated the Grenville Orogeny and has no equivalents in Scotland; the Torridon Group (together with the Sleat Group, the Iona and Tarskavaig groups and three groups on Shetland) are ...
The Morar Group is a sequence of Tonian (lower Neoproterozoic) sedimentary rocks that have been subjected to a series of tectonic and metamorphic events since their deposition. Originally interpreted to be lowest (oldest) part of a "Moine Supergroup", this sequence now forms part of the Wester Ross Supergroup . [ 1 ]
A diagram of various depositional environments. In geology, depositional environment or sedimentary environment describes the combination of physical, chemical, and biological processes associated with the deposition of a particular type of sediment and, therefore, the rock types that will be formed after lithification, if the sediment is preserved in the rock record.
Sedimentary structures include all kinds of features in sediments and sedimentary rocks, formed at the time of deposition.. Sediments and sedimentary rocks are characterized by bedding, which occurs when layers of sediment, with different particle sizes are deposited on top of each other. [1]
In addition, conglomerates are classified by source as indicated by the lithology of the gravel-size clasts If these clasts consist of rocks and minerals that are significantly different in lithology from the enclosing matrix and, thus, older and derived from outside the basin of deposition, the conglomerate is known as an extraformational ...
The aim of sedimentology, studying sediments, is to derive information on the depositional conditions which acted to deposit the rock unit, and the relation of the individual rock units in a basin into a coherent understanding of the evolution of the sedimentary sequences and basins, and thus, the Earth's geological history as a whole.