Oldest known sediments in the Baltic area that have not been subject to metamorphism
In north European geology, Jotnian[note 1] sediments are a group of Precambrian rocks more specifically assigned to the Mesoproterozoic Era (Riphean), albeit some might be younger. Jotnian sediments include the oldest known sediments in the Baltic area that have not been subject to metamorphism. Stratigraphically, Jotnian sediments overlie the rapakivi granites and other igneous and metamorphic rocks and are often intruded by younger diabases.
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In north European geology, Jotnian sediments are a group of Precambrian rocks more specifically assigned to the Mesoproterozoic Era (Riphean), albeit...
Mesoproterozoic and Neoproterozoic, especially in Åland and in the southeast. Jotnian sediments occur usually together with rapakivi granites. Mountains that...
1500 Mya. Boring Billion – Earth history, 1.8 to 0.8 billion years ago Jotnian – Oldest known sediments in the Baltic area that have not been subject...
reproduction. Boring Billion – Earth history, 1.8 to 0.8 billion years ago Jotnian – Oldest known sediments in the Baltic area that have not been subject...
age (Precambrian). This "Ladoga–Pasha structure", as it is known, hosts Jotnian sediments. During the Pleistocene glaciations the depression was partially...
refers to occurrences at Vaasa, on the west coast of Finland. Bohus granite Jotnian Rapakivi granite Satakunta dyke swarms Öhman, T.; Preeden, U. (2013). "Shock...
erosion made the terrain rather flat at the time of the deposition of Jotnian sediments. With Proterozoic erosion amounting to tens of kilometers, many...
controversy von Eckermann rejected the notion that rapakivi granites were Jotnian sediments turned into granite. José María Sobral Pentti Eskola "Harry von...
"cataplatform", and a "orthoplatform" at the top. The Mesoproterozoic Jotnian sediments of the Baltic area are examples of a "quasiplatform". The oldest...
Died 26 June 1934 (1934-06-27) (aged 70) Nationality Finnish Known for Jotnian, Migmatite, Myrmekite, Rapakivi granite Awards Murchison Medal (1928) Penrose...
Palaeopangea. During the Riphean the graben structures were filled by Jotnian sediments. During the Middle Paleozoic the rift system was reactivated...
Mesoproterozoic and Neoproterozoic, specially at Åland and the southeast. So-called Jotnian sediments occur usually together with Rapakivi granites. The youngest rocks...
half of the 20th century regarded the rapakivi granites as "graniticized" Jotnian sediments, an idea which is now discredited. "Definition of RAPAKIVI"....
stretching in a submeridional direction for approximately 7 km, composed of Jotnian quartzites and quartzite-sandstones, fractured by numerous faults, possibly...
Baltic Sea area that are not metamorphosed are Jotnian orthoquartzite, siltstones and conglomerates. Jotnian sediments are scattered. In the south and east...
Retrieved 2017-07-21. Amantov, A.; Laitakari, I.; Poroshin, Ye (1996). "Jotnian and Postjotnian: Sandstones and diabases in the surroundings of the Gulf...
Geography: 119–139. Amantov, A.; Laitakari, I.; Poroshin, Ye (1996). "Jotnian and Postjotnian: Sandstones and diabases in the surroundings of the Gulf...
supercontinent of Columbia. At various location dykes of the swarm cut across Jotnian sediments indicating a Postjotnian age for the dyke swarm. Viewed in a...
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