Results 21 to 30 of about 10,763 (119)

Peneplains and tectonics in North-East Greenland after opening of the North-East Atlantic

open access: yesGEUS Bulletin, 2021
Elevated plateaus with deeply incised valleys characterise elevated, passive continental margins (EPCMs) in all climate zones. These features are, however, a topic of debate regarding when and how the large-scale landscapes formed.
Johan M. Bonow, Peter Japsen
doaj   +1 more source

A new species of Xyletinus Latreille, 1809 (Coleoptera: Ptinidae: Xyletininae) from Eocene Baltic amber, with a key to known fossil species [PDF]

open access: yesКавказский энтомологический бюллетень, 2021
A new extinct species of the genus Xyletinus Latreille, 1809, namely X. (s. str.) lobanovi sp. n., is described and illustrated from Eocene Baltic amber. This new extinct species resembles X.
A. Bukejs, V.I. Alekseev, J. Háva
doaj   +1 more source

150 million years of freshwater fish biogeography: vicariance or dispersal? [PDF]

open access: yesResearch & Knowledge, 2017
Freshwater fishes are supposedly good case studies to test palaeobiogeographical models because they are attached to land masses, at least primary freshwater fishes, which are unable to cross marine barriers.
Lionel Cavin
doaj   +1 more source

The first record of a paguroid shield (Decapoda, Anomura, Annuntidiogenidae) from the Miocene of Cyprus

open access: yesGeologija, 2020
For the first time, a paguroid shield is recorded from upper Miocene reefal strata (Koronia Member, Pakhna Formation) that crop out along the northern margin of the Troodos Massif, north of the village of Mitsero, Cyprus.
Jonathan J.W. WALLAARD   +4 more
doaj   +1 more source

Petrochemical Characteristics of Cenozoic Basalts in Datong, Shanxi

open access: yesTaiyuan Ligong Daxue xuebao, 2021
Basalt in the Cenozoic period in Datong, Shanxi can be divided into two types: alkaline basalt in the northwest and tholeiite basalt in the southeast. Petrological and geochemical analyses were carried out on the basalts in Datong area. As known from the
Xiaoqin LI   +4 more
doaj   +1 more source

The karst and palaeokarst of North and North-East Greenland – physical records of cryptic geological intervals

open access: yesGEUS Bulletin, 2022
Carbonate rocks of Neoproterozoic to Silurian age are abundantly distributed around the coasts of North and North-East Greenland. Palaeokarst horizons are particularly well developed within the Portfjeld Formation (Ediacaran – earliest Cambrian) and ...
M. Paul Smith, Gina E. Moseley
doaj   +1 more source

Petrochemistry and origin of basalt breccia from Ban Sap Sawat area, Wichian Buri, Phetchabun, central Thailand [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2013
Thailand is usually considered to be controlled by escape tectonics associated with India-Asia collision during theLate Cenozoic, and basaltic volcanism took place in this extensional period.
Phisit Limtrakun   +2 more
doaj  

Geodynamic conditions for Cenozoic activation of tectonic structures in Southeastern Mongolia

open access: yesГеодинамика и тектонофизика, 2018
The knowledge of the neotectonic structures inSoutheastern Mongolia, that is considerably distant from the active plate boundaries, is important for determining a source of tectonic deformation and regular features of activation in the intracontinental ...
A. V. Parfeevets, V. A. Sankov
doaj   +1 more source

Cenozoic stratigraphic correlation and the lower limit of Quaternary in Guanzhong Basin

open access: yes地质科技通报, 2021
Thick Cenozoic sediments in Guanzhong Basin provide excellent geological records for the study of the regional tectonics, sediment environment evolution and paleoclimate change.However, there are still controversies about the Cenozoic stratigraphic ...
Yougui Song   +5 more
doaj   +1 more source

Rifts, orogens, cratons, and global tectonics: Introduction

open access: yesГеодинамика и тектонофизика, 2017
A key role in developing the Earth theory is played by comparative studies of orogens, rifts, and platforms in the equatorial, middle and high latitudes of Asia and the adjacent Arctic regions.
S. V. Rasskazov
doaj   +1 more source

Home - About - Disclaimer - Privacy