Results 101 to 110 of about 213,060 (361)
The Depositional Record, EarlyView.Halite thickness in Mbr 2 of the Kumugeliemu can reach 1000 m. The thick halite is associated with sedimentary rock with shallow water fabrics. The thick halite was formed in a shallow‐sea water environment. The ‘Multiple transgression‐salt‐forming’ model was established.
Peng Qin, Dakang Zhong, Zhonggui Hu
wiley +1 more source
Cretaceous rudists of Guatemala
Revista Mexicana de Ciencias Geológicas, 2019 A small assemblage of rudists was described in the 1930´s from central Guatemala by MacGillavry and Mullerried… in order to continue, download the full paper in PDF.
Robert W. Scott
doaj
Eksplorium: Buletin Pusat Pengembangan Bahan Galian Nuklir, 2014 Nenering Formation is essentially made up of semi-consolidated sediments, which are divided into basal conglomerate beds, conglomeratic sandstone, cross-bedded sandstone, and siltstone to muddy layers facies.
Yuniarti Ulfa +2 more
doaj +1 more source
Melt regimes, internal stratigraphy, and flow dynamics of three glaciers in the Alaska Range [PDF]
, 2012 We used ground-penetrating radar (GPR), GPS and glaciochemistry to evaluate melt regimes and ice depths, important variables for mass-balance and ice-volume studies, of Upper Yentna Glacier, Upper Kahiltna Glacier and the Mount Hunter ice divide, Alaska.
Arcone, Steven +7 more
core +2 more sources
The Depositional Record, EarlyView.Sedimentological and geochemical characteristics are used to reconstruct sedimentation dynamics and erosional processes. Several rapidly deposited layers are characterised over changing depositional environments during the Late Holocene, from a phase when the lake was connected to the sea to a more stable state conducive to varve formation.
Milena S. Kury +6 more
wiley +1 more source
The Depositional Record, EarlyView.A 30 m long sedimentary succession at the bottom of the Belize Blue Hole represents terrestrial cenote (12.5–7.2 ka BP), restricted marine swamp (7.2–5.7 ka BP) and fully marine lagoonal phases (5.7–0 ka BP) on Lighthouse Reef carbonate platform. Post‐glacial and Holocene sea‐level rise largely controlled the sedimentological, faunal and floral changes
Eberhard Gischler +12 more
wiley +1 more source
The Depositional Record, EarlyView.The Bisperode section is one of the most expanded and complete sections with shallow‐marine Oxfordian strata in the LSB. This study provides a reference record for shallow‐marine settings and allows for the correlation of the strata from the LSB with Oxfordian deposits distributed elsewhere in the world.
Deyan Zhang +3 more
wiley +1 more source
A Conceptual Model for Spatial Grain Size Variability on the Surface of and within Beaches
Journal of Marine Science and Engineering, 2016 Grain size on the surface of natural beaches has been observed to vary spatially and temporally with morphology and wave energy. The stratigraphy of the beach at Duck, North Carolina, USA was examined using 36 vibracores (~1–1.5 m long) collected along a
Edith Gallagher +4 more
doaj +1 more source
A review of late Quaternary silicic and some other tephra formations from New Zealand: their stratigraphy, nomenclature, distribution, volume, and age. [PDF]
, 1990 The stratigraphic relationships and distribution of 36 named late Quaternary (≤c. 50 000 yr B P.) silicic tephra formations, erupted from 4 volcanic centres—Okataina, Taupo, Maroa, and Tuhua (Mayor Island)—are presented.
Froggatt, Paul C., Lowe, David J.
core +2 more sources
, 1989 La stratigraphie a mis en évidence des couches associées à l’occupation du site et des dépôts liés à des remblaiements essentiellement naturels.Les séries d’occupation paraissent cycliques. Un niveau de préparation est soigneusement aménagé. Il supporte un lit de matériaux organiques (cendres) qui forme le niveau d’occupation, riche en mobilier ...
openaire +1 more source