Results 21 to 30 of about 90,687 (281)

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating' [PDF]

, 2001
The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its routine use.
Aharon P., Anthony E. Fallick, Anton B. Kuznetsov, Bowring S.A., Brand U., Brasier M.D., Brasier M.D., Brasier M.D., Burns S.J., Calver C.R., Corsetti F.A., Fairchild I.J., Fairchild I.J., Gao G., Gorokhov I.M., Gorokhov I.M., Gorokhov I.M., Grotzinger J.P., Grotzinger J.P., Hoffman P.F., Igor M. Gorokhov, Kaufman A.J., Kennedy M.J., Kirschvink J.L., Knoll A.H., Knoll A.H., Knoll A.H., Kupecz J.A., Kuznetsov A.B., Kuznetsov A.B., Lambert I.B., Magaritz M., McArthur J.M., McArthur J.M., McCulloch M.T., Melezhik V.A., Morton J.P., Ovchinnikova G.V., Pelechaty S.M., Podkovyrov V.N., Pokrovsky B.G., Pokrovsky B.G., Pokrovsky B.G., Saylor B.Z., Semikhatov M.A., Singh U., Smith L.H., Tronnes R.G., Tucker M.E., Tucker M.E., Veizer J., Veizer J., Victor A. Melezhik, Wada S.-I., Walter M.R., Wang Da-Rui   +55 more
core   +1 more source

The latitudinal distribution of vegetation cover in Siberia

BIO Web of Conferences, 2019
The latitudinal changes of vegetation cover on the plains of Siberia are observed. In Western Siberia there are 4 zones (tundra and taiga, and forest-steppe and steppe only here), in Central and North-Eastern Siberia − only 2 zones (tundra and taiga ...
Safronova Irina, Yurkovsksya Tatiana
doaj   +1 more source

Analysis of Spatio-Temporal Variability of Lightning Activity and Wildfires in Western Siberia during 2016–2021

Atmosphere, 2022
This research compares the spatial and temporal variability of lightning activity associated with wildfires in several natural geographical zones of Western Siberia from 2016–2021.
Elena Kharyutkina, Konstantin Pustovalov, Evgeniia Moraru, Olga Nechepurenko   +3 more
doaj   +1 more source

PLANNING OF CYCLIC WATERING BASED ON ANISOTROPIC HYDRODYNAMIC MODEL OF THE CARBONATE DEPOSIT OF GAGARINSKOEFIELD

Известия Томского политехнического университета: Инжиниринг георесурсов, 2020
The relevance. Today, one of the urgent and the most important tasks in the oil industry is to increase the final oil recovery ratio.Much attention is now paid to the so-called hydrodynamic methods of increasing the oil recovery coefficient.
Dmitriy A. Martyushev, Alexander G. Mengaliev   +1 more
doaj   +1 more source

A Second Mortuary Hiatus on Lake Baikal in Siberia and the Arrival of Small-Scale Pastoralism [PDF]

, 2017
Peer reviewedPublisher ...
Kharinskii, Artur A., Losey, Robert J., Nomokonova, Tatiana, Waters-Rist, Andrea L.   +3 more
core   +1 more source

Methane emissions from western Siberian wetlands: heterogeneity and sensitivity to climate change [PDF]

, 2007
The prediction of methane emissions from high-latitude wetlands is important given concerns about their sensitivity to a warming climate. As a basis for the prediction of wetland methane emissions at regional scales, we coupled the variable infiltration ...
Bohn, T. J., Bowling, L. C., Friborg, T., Lettenmaier, D. P., McDonald, K. C., Podest, E., Sathulur, K.   +6 more
core   +1 more source

СOMBINED ROTARY-WELLHEAD COUNTERBALANCING OF PUMPJACK

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
Relevance. One of the most important factors determining the efficiency of the rod pump installation is the degree of balance in the drive. With existing balancing technologies, pumpjack units are subject to significant fatigue wear due to high loads on ...
Kamil R. Urazakov, Denis V. Zhuravlev, Shamil A. Alimetov   +2 more
doaj   +1 more source

Element transport in the Taz River, western Siberia

Chemical Geology, 2022
The riverine export fluxes of dissolved carbon, nutrient and metals from the land to the Arctic Ocean are fairly well quantified for five large Arctic rivers but remain virtually unknown for mid-sized Eurasian rivers, notably those draining through the permafrost zone.
Pokrovsky, Oleg S., Manasypov, Rinat M., Chupakov, Artem V., Kopysov, Sergey G.   +3 more
openaire   +3 more sources

Technological characteristics of objects made of iron and iron-carbon alloys associated with the Yudino Culture (according to the metallographic data) [PDF]

Вестник археологии, антропологии и этнографии, 2022
Towards the beginning of the 2nd millennium CE, the population of Western Siberia had achieved significant progress in the production and processing of ferrous metals.
Zinyakov N.M. , Tret'iakov E.A.
doaj   +1 more source

Trypsin inhibitor activity in representatives of the genus Hedysarum (Fabaceae): the polyvariance of seasonal dynamics in Southern Siberia

Труды по прикладной ботанике, генетике и селекции, 2020
Background. Trypsin-inhibiting activity (TIA) is one of the factors of plant immunity. This factor provides the presence of general non-specific systemic resistance. Representatives of the genus Hedysarum L.
E. V. Zhmud, N. S. Zinner, O. V. Dorogina   +2 more
doaj   +1 more source