Results 81 to 90 of about 37,827 (212)

DITRUPA BREVIS N.SP., A NEW SERPULID FROM THE MEDITERRANEAN NEOGENE WITH COMMENTS ON THE ECOLOGY OF THE GENUS

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 1999
The new species Ditrupa brevis (Polychaeta, Serpulidae) is described from Middle Pliocene silts of southern Italy. It is also reported from Late Miocene sediments of southern Italy.
ROSSANA SANFILIPPO
doaj   +1 more source

3D geological mapping - uncovering the subsurface to increase environmental understanding [PDF]

open access: yes, 2012
Geological models provide geologists with a mechanism to express their geological knowledge and concepts in an explicit form. The construction of accurate and defensible 3D geological models requires therefore, not only high quality data such as ...
Dearden, Rachel   +3 more
core  

Adaptation of the methodology for sequential five-step fractionation of elements from bottom sediments of lake Imandra [PDF]

open access: yesBIO Web of Conferences
A series of experiments was carried out to adapt the technique of five-stage sequential fractionation of elements from soils, silts and bottom sediments (on the example of bottom sediments of Lake Imandra).
Velieva Edae   +2 more
doaj   +1 more source

Enhancing Thermo-Mechanical Behavior of Bio-Treated Silts Under Cyclic Thermal Stresses

open access: yesGeosciences
Freeze-thaw (F-T) cycles in seasonally frozen regions induce progressive volumetric strains leading to degradation of soils’ mechanical properties and performance of earthen infrastructure.
Rashed Rahman   +3 more
doaj   +1 more source

Features of the distribution of natural radioactive elements depending on the paleogeographic conditions of sedimentation of the Upper Jurassic sediments (on the example of the Kogalym-Pokachevsky region of Western Siberia) [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Науки о Земле
The article discusses the content and distribution of natural radioactive elements (uranium, thorium, and potassium) in the Upper Jurassic deposits of the Kogalym-Pokachevsky region, based on data from nine wells.
Titov, Yury Vladimirovich   +3 more
doaj   +1 more source

Registros paleógenos de glyptodontidae propalaehoplophorinae (xenarthra, cingulata) en áreas extrapatagónicas [PDF]

open access: yes, 2016
Los registros paleógenos de Cingulata Glyptodontidae son muy escasos y los mejores conocidos provienen de la actual región patagónica de Argentina. Dos subfamilias han sido descritas: Glyptatelinae y Propalaehoplophorinae.
Cuaranta, Pedro   +5 more
core   +3 more sources

Controls on Cyclic Formation of Quaternary Early Diagenetic Dolomite [PDF]

open access: yes, 2018
The origin of sedimentary dolomite and the factors that control its formation within the geological record remain speculative. In most models, dolomite formation is linked to evaporative conditions, high water temperature, increasing Mg/Ca ratio ...
Bontognali, T. R. R.   +3 more
core   +2 more sources

The Effect of Non-Plastic Fines Content on Pore Pressure Generation Rates in Cyclic Triaxial and Cyclic Direct Simple Shear Tests

open access: yesEng
When loose, saturated sands and non-plastic silts are subjected to undrained cyclic loading, they will generate positive pore pressures. This increase in pore pressures leads to a decrease in effective stress with a corresponding decrease in shear ...
Carmine P. Polito   +2 more
doaj   +1 more source

Silted algebras

open access: yesAdvances in Mathematics, 2016
Fix some typos, to appear in Adv ...
Buan, Aslak Bakke, Zhou, Yu
openaire   +2 more sources

Silt [PDF]

open access: yesEnvironmental Humanities, 2019
openaire   +2 more sources

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