Results 61 to 70 of about 1,084 (191)

Pre-Ordovician phosphorites and paleooceanography: a brief excursus into geochemical systematics of rare earth elements

Литосфера, 2017
This publication provides an overview of the rare earth elements systematics in Pre-Ordovician phosphorites from various regions of the world. Based on the analysis of significant data bank it shows that currently there are no universal parameters ...
A. V. Maslov
doaj  

Lower Vendian deposits in south-western slope of Nepsky Arch (Eastern Siberia): lithology and depositional settings

, 2022
Maxim Balagurov
openalex   +1 more source

NEW DATA ON THE AGE AND COMPOSITION OF OPHIOLITES FROM THE KABAK-TAIGA MASSIF (GORNY ALTAI)

Геодинамика и тектонофизика
The combination of newly obtained geological, petrological and geochronological data on the rocks from the Kabak-Taiga ophiolite massif of the Gorny Altai and already published materials on similar characteristics of the ophiolites from Tuva allows us to
V. D. Zindobryi, M. M. Buslov, A. V. Kotlyarov   +2 more
doaj   +1 more source

Geochemical background of Berezovsky depression oil and gas potential (eastern Siberia)

Georesursy
Berezovsky depression, located on the northeast of the Pre-Patom foredeep, is a promising target for hydrocarbon prospecting, as evidenced by oil and gas shows established while drilling, the presence of structures and natural reservoirs.
N. P. Fadeeva, N. V. Morozov, E. A. Bakay, S. V. Frolov   +3 more
doaj   +1 more source

BOUNDARY BETWEEN THE TIMANIAN AND URALIAN TECTONIC CYCLES: RESULTS OF DATING OF DETRITAL ZIRCONS FROM BASAL HORIZONS OF THE LOWER PALEOZOIC SYNRIFT COMPLEX OF THE POLAR URALS, AND IGNEOUS ROCK AGE DATA REPORT

Геодинамика и тектонофизика
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, N. Yu. Nikulova, V. B. Khubanov   +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]

Estonian Journal of Earth Sciences, 2009
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, Marandi, Andres, Vaikmäe, Rein, Uppin, Marge   +3 more
doaj  

DURATION OF THE FIRST BIOZONE IN THE SIBERIAN HYPOSTRATOTYPE OF THE VENDIAN [PDF]

, 2015

openalex   +1 more source

Survived and disappeared intra-oceanic arcs of the Paleo-Asian Ocean: evidence from Kazakhstan. [PDF]

Natl Sci Rev, 2023
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]

Sci Adv, 2020
Buatois LA, Mángano MG, Minter NJ, Zhou K, Wisshak M, Wilson MA, Olea RA.   +6 more
europepmc   +1 more source

Sales of antibiotics without a prescription in pharmacies, 2017 and 2021, China. [PDF]

Bull World Health Organ, 2023
Chen J, Xie Y, Sun Y, Zang R, Sun Y, Dan L, Wang X, Hesketh T.   +7 more
europepmc   +1 more source