6. Dnieper-Donets Rift
The Dnieper-Donets Rift or Pripyat-Dnieper-Donets Rift (also referred as a "paleorift" and "aulacogen") is an east-west running rift in the Sarmatian Craton that developed and was most active in the Paleozoic. The rift extends from the Caspian Depression in Russia to northern Ukraine passing by the Donbas region. The rift separates the Voronezh Massif in the north from the Ukrainian Shield in south.[1]
The Dniepr-Donets Paleorift was the site of Devonian magmatic activity that begun in Late Frasnian and peaked in the Famennian caused by a mantle plume. Extensional tectonics were also most active during the Famennian.[2]
There have been suggestions that the Dniepr-Donets Paleorift is related to the coeval Kola Alkaline Province.[3]
References[edit]
- ^ Gorbatchev, R.; Bogdanova, S. (1993). "Frontiers in the Baltic Shield". Precambrian Research. 64 (1–4): 3–21. doi:10.1016/0301-9268(93)90066-B.
- ^ Wilson, M.; Lyashkevich, Z.M. (1996). "Magmatism and the geodynamics of rifting of the Pripyat-Dnieper-Donets rift, East European Platform". Tectonophysics. 268 (1–4): 65–81. doi:10.1016/s0040-1951(96)00234-x.
- ^ Downes, Hilary; Balaganskaya, Elena; Beard, Andrew; Liferovich, Ruslan; Demaiffe, Daniel (2005). "Petrogenetic processes in the ultramafic, alkaline and carbonatitic magmatism in the Kola Alkaline Province: a review" (PDF). Lithos. 85 (1–4): 48–75. doi:10.1016/j.lithos.2005.03.020.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
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