Large-scale pyroclastic density currents (PDCs) produce inhomogeneity of distributions, thicknesses, stratigraphic structures, and temperatures, thereby causing poor understanding of PDC emplacement processes.
Bo Zhao+7 more
doaj +1 more source
Palaeoecology of corals and stromatoporoids in a late Silurian biostrome in Estonia [PDF]
A middle Ludlow biostrome at Katri, western Estonia, the richest accumulation of corals and stromatoporoids in Estonia, is partly exposed in a coastal section ca. 1 m high, 150 m long. The fully marine biostrome consists of 5 layers of skeletal carbonate,
Kershaw, S, Motus, M-A
core +3 more sources
Origin and significance of 'dispersed facies' basal ice: Svínafellsjökull, Iceland [PDF]
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]
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]
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
Generating unrepresented proportions of geological facies using Generative Adversarial Networks [PDF]
In this work, we investigate the capacity of Generative Adversarial Networks (GANs) in interpolating and extrapolating facies proportions in a geological dataset. The new generated realizations with unrepresented (aka. missing) proportions are assumed to belong to the same original data distribution.
arxiv +1 more source
Late Miocene to early Pliocene biofacies of Wanganui and Taranaki Basins, New Zealand: Applications to paleoenvironmental and sequence stratigraphic analysis [PDF]
The Matemateaonga Formation is late Miocene to early Pliocene (upper Tongaporutuan to lower Opoitian New Zealand Stages) in age. The formation comprises chiefly shellbeds, siliciclastic sandstone, and siltstone units and to a lesser extent non-marine and
Beu A. G.+42 more
core +2 more sources
The Geology of Fluvial Deposits: Sedimentary Facies, Basin Analysis, and Petroleum Geology
1 Introduction.- 2 Historical Background.- 3 Concepts of Scale.- 4 Methods of Architectural-Element Analysis.- 5 Lithofacies.- 6 Architectural Elements Formed Within Channels.- 7 Architectural Elements of the Overbank Environment.- 8 Fluvial Styles and ...
A. Miall
semanticscholar +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]
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
The fundamental facial law, determining the relationship between facies of sedimentary rocks in the sedimentary basin in lateral and vertical extensions, was formulated by the Russian geologist N.A. Golovkinsky a century and a half ago.
S.O. Zorina+3 more
doaj +1 more source