The Upper Cambrian-Lower Ordovician terrigenous strata, unconformably overlying the Upper Riphean-Vendian rocks of the Timanide orogen in the north of the Urals, and contemporaneous bimodal volcanics and intrusive rocks are considered complexes marking ...
A. A. Soboleva +2 more
doaj +1 more source
Chemical peculiarities of the Silurian–Ordovician and Cambrian–Vendian aquifer systems in Estonia: an overview of hydrochemical studies [PDF]
The chemical composition of groundwater was studied and plausible reasons for its peculiarities were evaluated on the basis of long-term groundwater monitoring data.
Karro, Enn +3 more
doaj
Integrated chemo- and biostratigraphic calibration of early animal evolution: Neoproterozoic-early Cambrian of southwest Mongolia [PDF]
Five overlapping sections from the thick Neoproterozoic to early Cambrian sediments of western Mongolia were analysed to yield a remarkable carbon-isotope, strontium-isotope and small shellyfossil (SSF) record.
Brasier, M. D. +3 more
core
Hydrothermalismes anté-Hercynien en Sud-Ibérie : apport de la géochimie isotopique du plomb.
International audienceLead isotope study has been performed on massive sulphide deposits of Ossa-Morena and Aracena Belt (South Iberia). Results suggest the existence of at least two ancient hydrothermal events.
Marcoux, Eric +2 more
core +5 more sources
Biodiversity of the Ediacaran-early Cambrian transition in northwestern Argentina and related areas [PDF]
The Ediacaran-early Cambrian is a significant time of geological history in terms of biodiversity dynamics. During this time-span a particular soft-bodied fauna developed and disappeared, being replaced by the emergent skeleton-bearing faunas.
Aceñolaza, Florencio Gilberto
core
Survived and disappeared intra-oceanic arcs of the Paleo-Asian Ocean: evidence from Kazakhstan. [PDF]
Safonova I, Perfilova A.
europepmc +1 more source
Quantifying ecospace utilization and ecosystem engineering during the early Phanerozoic-The role of bioturbation and bioerosion. [PDF]
Buatois LA +6 more
europepmc +1 more source
Sales of antibiotics without a prescription in pharmacies, 2017 and 2021, China. [PDF]
Chen J +7 more
europepmc +1 more source
FORMAŢIUNEA VENDIANULUI DIN REGIUNEA CENTRALĂ A BAZINULUI r. NISTRU
The present article is dedicated to the Moldovan geologist Petru Bucatciuc, who during a couple of years was seriously engaged in studying the stratigraphic differentiation of the terigen formations of the Vendian age that are placed in the North region
USM ADMIN
doaj
Damaged Dickinsonia specimens provide clues to Ediacaran vendobiont biology. [PDF]
Retallack GJ.
europepmc +1 more source

