Results 11 to 20 of about 6,606 (218)

Petrophysical characteristics of the sandstones used in the construction of the Monumental Heritage of Ciudad Rodrigo, Salamanca. Spain

open access: yesMateriales de Construccion, 2003
Knowledge of the petrophysical characteristics of stones used in construction is evidently advantageous in the sense that it can help avoid wasting time and future disappointments when attempting to assess the results both in restoration work and in ...
M. J. Varas, E. Molina, M. A. Vicente
doaj   +1 more source

Taphonomy and paleoecology of fauna and flora from deltaic sandstones of Mospinka Formation (Middle Carboniferous) of Donets Basin

open access: yesGeo&Bio, 2019
The taphonomic and ecological features of the predominantly non-marine fauna and terrestrial flora from two deltaic sandstones in the middle part of the Mospinka Formation (Upper Bashkirian, Lower Pennsylvanian) were studied.
Vitaliy Dernov
doaj   +1 more source

Provenance reconstructions. Article 3. Modern research methods for heavy detrital minerals (garnet, tourmaline, chromespinelide, rutile, chloritoid, pyroxene and amphibole)

open access: yesЛитосфера, 2020
Research subject. This article considers accessory minerals, which, unlike zircons, are present in the vast majority of common clastic rocks. Materials and methods.
L. V. Badida, A. V. Maslov, G. A. Mizens
doaj   +1 more source

Surface and Subsurface Damage Caused by Bullet Impacts into Sandstone

open access: yesGeosciences, 2021
The shift of armed conflicts to more urbanised environments has increased the risk to cultural heritage sites. Small arms impacts are ubiquitous in these circumstances, yet the effects and mechanisms of damage caused are not well known.
Oliver Campbell   +3 more
doaj   +1 more source

Signs of the aeolian influence on the formation of coastal-marine sand deposits in the Permian (Republic of Tatarstan, Russia)

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2019
Sandy deposits can have a different genesis and form in different sedimentation environments. The example of the tar sands of the Early Permian age of the Republic of Tatarstan (Russia) shows the possibility of their complex and polygenic formation with ...
A.I. Mullakaev, R.R. Khasanov
doaj   +1 more source

Devonian organogenic buildings of the Urals and adjacent regions of East-Europian Platform and West Siberian

open access: yesЛитосфера, 2015
Several reef-building systems occurred during Cambrian-Devonian on the Urals and adjacent regions of the East-European Platform. The first phase was manifested in the Lower Cambrian within a limited area of the western slope of the Urals.
B. I. Chuvashov   +4 more
doaj   +2 more sources

Experimental study on strength degradation and meso-structural characteristics of saturated sandstone under freeze-thaw cycles

open access: yesMeitan kexue jishu
Freeze-thaw damage to rock masses on slopes constitutes a major hazard in open-pit mining operations, particularly in the cold regions of the western area.
Haotian XIE   +5 more
doaj   +1 more source

Source areas and geodynamic settings of cenozoic deposits in the West Sakhalin terrane based on the results of study of heavy detrital minerals

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2019
The paper describes the obtained data on content, the nature of distribution and composition of heavy detrital minerals from Cenozoic sandstones rocks in the West Sakhalin terrane.
Малиновский А.И.
doaj   +1 more source

Provenance reconstructions. Article 2. Litho- and isotope-geochemical approaches and methods

open access: yesЛитосфера, 2020
Research subject. In this paper, we consider specific features of the use of litho- and isotopic-geochemical data for the purposes of provenance reconstruction.Methods and materials.
A. V. Maslov   +4 more
doaj   +1 more source

Geochemical features and paleogeodynamic setting of permian and triassic deposits accumulation in the South of the Laoeling-Grodekovo terrane (Primorye)

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2021
New geochemical data on the Late Paleozoic and Early Mesozoic sandy rocks of the southern part of the Laoeling-Grodekovo terrane of the South-Western Primorye are presented. It is shown that terrane deposits differ significantly in geochemical parameters:
Malinovsky A.I.
doaj   +1 more source

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