Results 151 to 160 of about 1,038 (177)
Some of the next articles are maybe not open access.
Eurasia from the Aeneolithic (Chalcolithic) Era to the Early Middle Ages (Innovations, Contacts, Transmission of Ideas and Technologies). Материалы международной научной конференции, посвященной 120-летию со дня рождения выдающегося исследователя древностей Южной Сибири и Центральной Азии Михаила Пе, 2022
M. Bronnikova +3 more
exaly +2 more sources
M. Bronnikova +3 more
exaly +2 more sources
The Mechanisms and Time Factor of the Enzyme Structure of a Paleosoil
Biophysics, 2017The data on the enzyme activity of paleosoils of archaeological sites are given. It is shown that the activity of phosphatases and urease in soils of ancient settlements is significantly higher than in modern soils: 1.5–2.0 times for urease and 7–15 times for phosphatase in some cultural layers of the Bronze Age.
N. N. Kashirskaya +4 more
openaire +1 more source
Recognition And Significance Of Paleosoil Zones In A Heavy Oil Development Program
SPE International Thermal Operations and Heavy Oil Symposium and Western Regional Meeting, 2004Abstract Several types of ancient soil zones are present in the reservoirs of the Hamaca Development Area, Orinoco Heavy Oil Belt of Venezuela. It is important to recognize these paleosoils when drilling production wells and when constructing reservoir simulation models. The major reservoir sands were deposited in fluvial and fluviotidal
Steven Johansen +2 more
openaire +1 more source
A phase signature for detecting wet subsurface structures using polarimetric L-band SAR
IEEE Transactions on Geoscience and Remote Sensing, 2004 International audienceIn this paper, we investigate the ability of L-band synthetic aperture radar (SAR) systems to penetrate soils to retrieve information about subsurface wet structures. Our experiment site, the Pyla dune, is a bare sandy area allowing
Gilles Grandjean, P Paillou
exaly +2 more sources
Ukrainian Geographical Journal, 2022
Today, the study of the development of Holocene nature and its individual components within the territory of Ukraine is quite active. The research results are reflected in dissertations and monographs as well as in numerous publications. But there is no separate generalizing scientific work linking all the available information. The aim of our work was
Anatolii Kushnir, Oleksandr Leiberiuk
openaire +1 more source
Today, the study of the development of Holocene nature and its individual components within the territory of Ukraine is quite active. The research results are reflected in dissertations and monographs as well as in numerous publications. But there is no separate generalizing scientific work linking all the available information. The aim of our work was
Anatolii Kushnir, Oleksandr Leiberiuk
openaire +1 more source
Lithos, 2022
The large expanses of lava field and soils spread out around Mt. Etna volcano (Italy), make unique the landscape of the whole area. In this work, we investigated a sample set of a peculiar aggregate locally named with the term "Ghiara" collected in different outcrops of Mt. Etna volcano southern flank.
G. Lanzafame +6 more
openaire +1 more source
The large expanses of lava field and soils spread out around Mt. Etna volcano (Italy), make unique the landscape of the whole area. In this work, we investigated a sample set of a peculiar aggregate locally named with the term "Ghiara" collected in different outcrops of Mt. Etna volcano southern flank.
G. Lanzafame +6 more
openaire +1 more source
A revision concerning the paleoenvironmental and paleoclimatic significance of the paleosoils
2007The majority of paleosols are described from continental deposits, most commonly from alluvial strata. In these continental records to much little is revealed of conditions between events of sedimentation. In alluvial sedimentary environments, a record of these conditions is not lost and gone forever. They may be interpreted from fossil soils formed on
PIERINI, CRISTINA +1 more
openaire +1 more source