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Hamra soils

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Journal Article
Published: 01 December 2015
Vadose Zone Journal (2015) 14 (12): vzj2014.06.0086.
..., leads to a far-from-uniform distribution of the dielectric permittivity around the probe. A laboratory experiment was conducted, comparing wall-embedded TDR (wall probe [WP]) measurements with those of a regular TDR probe (standard probe [SP]). Five different soils were examined (sand, “Hamra” [red...
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Journal Article
Published: 24 October 2018
Seismological Research Letters (2019) 90 (1): 149–159.
... with the seismic motions being greatly amplified with the increasing height of the buildings ( Shakal et al. , 1996 ; Çelebi and Liu, 1998 ; Çelebi et al. , 2014 ). In this article, we show the Global Positioning System (GPS) measured response of the tallest building in Kuwait, the Al‐Hamra Tower, to the 12...
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Journal Article
Journal: Clay Minerals
Published: 01 June 2004
Clay Minerals (2004) 39 (2): 207–217.
..., five of which are equivalent to the Lutetian ore, whereas the uppermost type is related to the alteration of the overlying glaucony facies of Hamra Formation. This work aims to illustrate the mineralogical and geochemical characteristics of the authigenic halloysite pockets that have been found...
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Journal Article
Published: 01 May 2011
Vadose Zone Journal (2011) 10 (2): 662–674.
... Aquifer can be generally classified into three types: Grumosol clays (44% of area), Hamra loamy sand to loam (39%), and dune sands along the coast (17%, Fig. 1 ). Grumosols are brown to gray alluvial soils, classified as Vertisols, specifically Chromic Haploxererts ( Soil Survey Staff, 1999...
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Journal Article
Published: 01 June 2013
Italian Journal of Geosciences (2013) 132 (2): 290–303.
... ) formation are more common compared to the overlying layers, where cement tends to be mainly of the meniscus-type ( fig. 5d ). The layers of sandstones placed in the highest part of this unit show evident remnants of truncated fersiallitic red soil ( D uchaufour , 1982 ), containing abundant rhizoliths...
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Journal Article
Published: 01 November 2004
Vadose Zone Journal (2004) 3 (4): 1286–1299.
..., 1992 ) and are summarized in Tables 1 and 2 . The soil in this site is a Hamra Red Mediterranean soil (Rhodoxeralf) whose clay fraction is dominated by montmorillonite. Inasmuch the sampling scheme for CEC, A s , and ρ b in this site ( Naor, 1987 ) was not adequate to evaluate the spatial...
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Journal Article
Published: 01 October 2005
Mineralogical Magazine (2005) 69 (5): 653–666.
... sediments-soils excavated from graves of Byzantine age, 4 th –7 th centuries A.D., in the Wadi Faynan in the Jordanian Desert, examines the extent to which the geochemistry of human skeletal remains, and in particular of long bones, may reflect exposure during life to metal pollution from intense...
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Journal Article
Published: 01 September 2005
Journal of the Geological Society (2005) 162 (5): 871–888.
... scale) allochthonous limestone blocks known as the ‘Oman Exotics’ are also incorporated into mélange zones within the Hawasina nappes. These form light coloured, erosionally resistant cuestas including Jabal Kawr and several smaller mountains south of Al Hamra ( Fig. 3 ). South and SW of the belt...
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Journal Article
Journal: Palynology
Published: 01 January 2004
Palynology (2004) 28 (1): 143–157.
... . Journal of the Israel Prehistoric Society , 29 : 17 – 40 . GVIRTZMAN , G. , NETSER , M. , and KATSAV , E. 1998 Last-Glacial to Holocene kurkar ridges, hamra soils and dune fields in the coastal belt of central Israel . Israel Journal of Earth Sciences , 47 : 29 – 46 HENRY...
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Journal Article
Published: 01 December 2023
Reviews in Mineralogy and Geochemistry (2023) 89 (1): 509–562.
..., Botswana (20° 58′ 54″S, 22° 58′ 36″E) Lunar (basalt) 13.5 kg La’gad 2015 Saguia el Hamra, Western Sahara (27° 25′ 33″N, 8° 44′ 36″W) Lunar (feldsp. breccia) 338 g La’gad 003 2015 Saguia el Hamra, Western Sahara (27° 36′ 22″N, 8° 45′ 40″W) Lunar (feldsp. breccia) 27.25 kg Lahmada...
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Journal Article
Published: 13 December 2023
Journal of the Geological Society (2024) 181 (1): jgs2023-045.
..., central Tibetan Plateau is an ideal material for addressing the issue. Observations of various climatic indicators suggest that these palaeosols were forest cinnamon soils, as shown by the compound Bt and Bk horizons, abundant clay coatings and carbonate nodules, and the diagnostic chemical composition...
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Journal Article
Published: 01 July 2022
American Mineralogist (2022) 107 (7): 1369–1377.
... or a phyllosilicate and a carbonate (calcite or dolomite) crystal. Our observations suggest that all inclusions in the terracotta calcite originate from the terra rossa (a common soil type in karstic areas) and limestone outcropping adjacent to the calcite crystals. While the micrometer-sized phyllosilicate...
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Journal Article
Journal: Geology
Published: 01 April 2012
Geology (2012) 40 (4): 359–362.
... of active and buried sediments and that the Amazon has the ability to dampen short-term, high-amplitude fluctuations caused by climatic variability in source areas and anthropogenic soil erosion. In our study, we expand on this idea to the temporal dimension and focus on the concentrations of the cosmogenic...
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Journal Article
Journal: GeoArabia
Publisher: Gulf Petrolink
Published: 01 April 2013
GeoArabia (2013) 18 (2): 99–136.
...-Akhdar anticline in the north of Al Hamra. This study is based on high-resolution satellite imagery. The red rectangle indicates the coverage (cf. Holland et al., 2009b ). The central Oman Mountains can be subdivided into four tectono-stratigraphic groups – the Autochthonous A and B...
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Journal Article
Published: 01 August 2019
American Mineralogist (2019) 104 (8): 1156–1164.
... or alkaline soils associated with clay minerals (e.g., serpentine), but it was seldom found in large or commercially useful deposits on the Earth ( Auerbach et al. 2004 ). The rare occurrence of Ht deposits is both puzzling and an unsolved issue. Both experimental and modeling research on the weathering...
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Journal Article
Journal: GeoArabia
Publisher: Gulf Petrolink
Published: 01 April 2007
GeoArabia (2007) 12 (2): 99–130.
...., 1974 ). Seismic sections across the foreland show the Hawasina thrust tips extending up into the Fiqa Formation ( Warburton et al., 1990 ; Boote et al., 1990 ). The entire thrust process was completed by 70 Ma (Lower Maastrichtian) when the mountain belt just breached sea-level. Thin laterite soils...
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Journal Article
Journal: Clay Minerals
Published: 01 June 2003
Clay Minerals (2003) 38 (2): 187–199.
... environments (e.g. Millot, 1964 ; Singer, 1984 ; Velde, 1985 ; Jones & Galán, 1988 , among others). As is known, this fibrous clay is found especially in soils, calcretes and lacustrine deposits and there is general agreement that its formation requires alkaline conditions, high Si and Mg activity...
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Journal Article
Published: 01 August 2009
Vadose Zone Journal (2009) 8 (3): 611–622.
... 1 ) or 0 (if z = z 2 ) with probabilities P and (1 − P ), respectively, and z 1 and z 2 denote two different types of the same attribute that coexist in the same domain. For example, consider the Hamra Red Mediterranean soil (a Rhodoxeralf) ( Russo and Bresler, 1981 ), whose...
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Journal Article
Journal: Economic Geology
Published: 01 June 2022
Economic Geology (2022) 117 (4): 971–977.
..., Demet Kiran Yildirim, Zeynep Doner, and Amr Abdelnasser article 125802 Geochemical modeling of soils and technogenic sediments interactions with natural waters using SELECTOR software (Chaabet-el-Hamra mine, Algeria) Valeriy Bychinsky, Marina Charykova, and Rima Omara article 125799 Introducing a new...
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1966
AAPG Bulletin (1966) 50 (3): 533–546.
... surface, however, does not prove absence of erosion, as the existence of many plateau regions at the present instant of geologic time indicate. For example, the Hamada el Hamra of northern Libya, covering thousands of square miles, elevated approximately 1,500-2,000 feet above sea-level and dipping less...
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