Results 31 to 40 of about 24,070 (261)

The appearance of Rosenella (stromatoporoid sponge) in Baltica: new species from the Pirgu Stage (Katian, Upper Ordovician) of Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences
The Katian Age, part of the Late Ordovician Epoch, was a period of significant stromatoporoid diversification. However, their fossil record is often less continuous, hindering our understanding of their diversity and diversification.
Juwan Jeon, Ursula Toom
doaj   +1 more source

The concealed Caledonide basement of eastern England and the southern North Sea : a review [PDF]

open access: yes, 1995
Field mapping, analysis of borehole core and studies of geophysical potential field and seismic data can be used to demonstrate the existence of a number of distinct crustal blocks within Eastern Avalonia beneath eastern England and the southern North ...
England, R., Lee, Mick, Pharaoh, Tim
core   +1 more source

Baltica and the Cadomian orogen in the Ediacaran–Cambrian: a perspective from SE Poland

open access: yesInternational journal of earth sciences, 2020
In the supercontinent of Rodinia, Baltica occurred next to Amazonia, then the two drifted away when Rodinia broke up. By the end of the Neoproterozoic, Baltica became an independent continent.
A. Żelaźniewicz   +2 more
semanticscholar   +1 more source

Reassessment of the invasion history of two species of Cakile (Brassicaceae) in Australia [PDF]

open access: yes, 2013
In this paper we revisit the invasion history of two species of Cakile in Australia. Cakile edentula subsp. edentula arrived in the mid 19th Century and spread into coastal strandline habitat from the southeast towards the west and to the north; Cakile ...
Ades, Peter K.   +3 more
core   +1 more source

Earth's middle age [PDF]

open access: yes, 2014
This research was funded through Natural Environment Research Council (grant NE/J021822/1) and the APC was paid through the RCUK OA block grant.Earth's middle age, extending from 1.7 to 0.75 Ga, was characterized by environmental, evolutionary, and ...
Cawood, Peter Anthony   +1 more
core   +1 more source

Morphological and genetic relationships of Myosotis laxa ssp. baltica and ssp. caespitosa, and typification of M. laxa ssp. baltica

open access: yesActa Societatis Botanicorum Poloniae, 2011
Intraspecific taxonomy of Myosotis laxa has been unclear for a long time. M. laxa ssp. baltica has been treated as a microendemic taxon of the Baltic Sea region, which has evolved in the Aland Islands and has spread northwards; the spread to southeast ...
Silvia Pihu   +3 more
doaj   +1 more source

U-Pn geochronology of deformed metagranites in central Sutherland, Scotland: evidence for widespread late Silurian metamorphism and ductile deformation of the Moine Supergroup during the Caledonian orogeny [PDF]

open access: yes, 2003
Within the Caledonides of central Sutherland, Scotland, the Neoproterozoic metasedimentary rocks of the Moine Supergroup record NW-directed D2 ductile thrusting and nappe assembly, accompanied by widespread tight-to-isoclinal folding and amphibolite ...
Friend, C.R.L.   +5 more
core   +1 more source

First report of an aulaceratid stromatoporoid from the Ordovician of Baltica [PDF]

open access: yesEstonian Journal of Earth Sciences
The aulaceratid stromatoporoids first appeared in the late Middle Ordovician and had achieved a worldwide distribution in tropical to subtropical shallow-marine environments by the Late Ordovician; however, their presence in Baltica has not been ...
Juwan Jeon, Ursula Toom
doaj   +1 more source

Paleomagnetism of Upper Vendian sediments from the Winter Coast, White Sea region, Russia: Implications for the paleogeography of Baltica during Neoproterozoic times [PDF]

open access: yes, 2002
Paleomagnetic results from an Upper Vendian sedimentary sequence exposed along the White Sea shoreline, NW Russia are described. These classical exposures have been the subject of intense paleontological investigations due to their well-preserved ...
Alexander Iosifidi   +34 more
core   +1 more source

Home - About - Disclaimer - Privacy