Results 11 to 20 of about 217,051 (354)

Cyanobacterial Diversity in Microbial Mats from the Hypersaline Lagoon System of Araruama, Brazil: An In-depth Polyphasic Study

open access: yesFrontiers in Microbiology, 2017
Microbial mats are complex, micro-scale ecosystems that can be found in a wide range of environments. In the top layer of photosynthetic mats from hypersaline environments, a large diversity of cyanobacteria typically predominates.
Vitor M. C. Ramos   +10 more
doaj   +1 more source

Origin and significance of 'dispersed facies' basal ice: Svínafellsjökull, Iceland [PDF]

open access: yes, 2010
Dispersed facies basal ice - massive (i.e. structureless) ice with dispersed debris aggregates - is present at the margins of many glaciers and, as a product of internal glacial processes, has the potential to provide important information about the ...
Darrel A. Swift   +10 more
core   +3 more sources

Use of Anemometric Results and Threshold Velocities for Determination of Proper Regions Where Sand Storms are Generated (Case Study: Around the Synoptic Station of Yazd) [PDF]

open access: yesDesert, 2012
In order to recognize the wind erosion situation of a region, the survey of its windiness is not sufficient and the physical characteristics of earth are of importance too.
H. Ahmadi   +2 more
doaj   +1 more source

Environmental controls on the distribution of neoselachian sharks and rays within the British Bathonian (Middle Jurassic). [PDF]

open access: yes, 2003
Extensive sampling from a range of facies within the Bathonian (Middle Jurassic) of southern England has allowed the palaeoenvironmental distribution of a number of taxa of neoselachian sharks and rays to be assessed.
Underwood, Charlie J.
core   +1 more source

An updated stratigraphic and environmental framework for the distribution of Silurian vertebrates on Gotland [PDF]

open access: yesEstonian Journal of Earth Sciences, 2015
In this work, previously published occurrences of vertebrates from the latest Llandovery to end-Ludlow successions of Gotland, Sweden, are gathered and summarized in an updated stratigraphic framework, which also incorporates facies differences of ...
Oskar Bremer, Henning Blom
doaj   +1 more source

Tidal flat deposits of the Lower Proterozoic Campbell Group along the southwestern margin of the Kaapvaal Craton, Northern Cape Province, South Africa [PDF]

open access: yes, 1991
Lower Proterozoic stromatolites and associated clastic carbonate deposits of the Campbell Group, from the southern margin (Prieska area) of the Kaapvaal Craton, northern Cape Province, are described.
Aigner   +66 more
core   +1 more source

Sedimentary processes and architecture of Upper Cretaceous deep-sea channel deposits : a case from the Skole Nappe, Polish Outer Carpathians [PDF]

open access: yes, 2018
Deep-sea channels are one of the architectonic elements, forming the main conduits for sand and gravel material in the turbidite depositional systems.
Łapcik, Piotr
core   +2 more sources

Evolusi Bentuklahan daerah Manado dan sekitarnya, Sulawesi Utara

open access: yesIndonesian Journal on Geoscience, 2014
http://dx.doi.org/10.17014/ijog.vol4no2.20096Landform evolusion in Manado region has been strongly influenced by tectonic activities beside marine and volcanic ones.
S. Poedjoprajitno
doaj   +1 more source

FOREST TYPES OF THE STAVROPOL UPLAND (ON THE EXAMPLE OF THE DARK FOREST, M. STRIGAMENT)

open access: yesНаука. Инновации. Технологии, 2022
The article describes the main stages of the history of the forest typology in Russia, given the landscape map of mount Strigament. The main attention was paid to the forest formations of the study which was conducted by the method of landscape profiling.
Anna Evgen’evna Kolsnichenko
doaj  

CPT Parameters of Loess Subsoil in Lublin Area

open access: yesApplied Sciences, 2021
Loess soils were created by the wind transporting particles with later or in parallel occurred protogenetic, syngenetic and epigenetic processes. As a result, various genetic processes affected loesses strength and deformability characteristics.
Krzysztof Nepelski, Agnieszka Lal
doaj   +1 more source

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