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Journal Article
Journal: Geology
Published: 01 July 2017
Geology (2017) 45 (7): 651-654.
... on sedimentary reactive phosphorus from the western subtropical North Pacific. On a millennial time scale, EP decreased during Northern Hemisphere cold events when atmospheric dust loading was high, and increased during warm episodes. The inferred antiphase relation between dust and EP suggests that the supply...
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Journal Article
Journal: Geology
Published: 01 September 2016
Geology (2016) 44 (9): 771-774.
... to <20% where local groundwater remained shallow enough to produce evaporite salts. Erosion and dust emissions are most severe in central Owens Valley when groundwater falls below the 2 m effective rooting depth of native meadow vegetation but remains shallow enough (<6 m) so that capillary action...
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... variations in the terrigenous dust input in this pelagic, deep-marine environment. We speculate that the dust is mainly eolian in origin and that the availability and transport of dust are influenced by variations in the vegetation cover on the Maastrichtian-Paleocene African or Asian zone, which were...
Journal Article
Journal: GSA Bulletin
Published: 01 May 2016
GSA Bulletin (2016) 128 (5-6): 944-956.
...A. Licht; A. Pullen; P. Kapp; J. Abell; N. Giesler AbstractThe loess and paleosol sequences of the Chinese Loess Plateau are composed of Quaternary dust, the origin of which has been the subject of considerable debate. Some recent U-Pb geochronological studies of eolian zircons have proposed...
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Journal Article
Published: 07 March 2016
Geochemistry: Exploration, Environment, Analysis (2016) 16 (2): 159-163.
...Yang Tang; Guilin Han; Fushan Li; Qixin Wu AbstractThe abundance and distribution patterns of Rare Earth Elements (REE) in atmospheric dust in a typical karst forest area of the Maolan National Nature Reserve Park in Southwest China were determined during the period from May 2009 to January 2011...
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Series: GSA Special Papers
Published: 01 January 2016
DOI: 10.1130/2015.2516(21)
... Early Pennsylvanian (309–318 Ma) paleocave sediments hosted in the Mississippian (345–359 Ma) Leadville Limestone were partly derived from long-distance (>2000 km) source areas. In addition to showing the importance of long-distant dust transport in cave sediments, because these paleocave...
Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP416.14
EISBN: 9781862397187
... of the particulate matter in the degradation of architectural ceramics. For this reason the attic dust and settled dust from the roofs of the studied buildings were collected. In the attic dust, besides the natural particles of geological origin, three types of artificial particles typically with spherical shape...
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Journal Article
Journal: Geology
Published: 01 July 2015
Geology (2015) 43 (7): 567-570.
.... 1 – 38 , doi: 10 .1016 /S0031 -0182 (00)00248 -0. Tsoar H. Pye K. , 1987 , Dust transport and the question of desert loess formation : Sedimentology , v. 34 , p. 139 – 153 , doi: 10 .1111 /j .1365 -3091 .1987 .tb00566 .x. Whitlock C. Moreno P.I. Bartlein P...
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Journal Article
Journal: Geology
Published: 01 January 2015
Geology (2015) 43 (1): 31-34.
...Joanna M. Nield; Robert G. Bryant; Giles F.S. Wiggs; James King; David S.G. Thomas; Frank D. Eckardt; Richard Washington AbstractPlayas are common in arid environments and can be major sources of mineral dust that can influence global climate. These landforms typically form crusts that limit...
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Journal Article
Journal: Geology
Published: 01 August 2014
Geology (2014) 42 (8): 667-670.
... of NH glaciation. The measured 143Nd/144Nd, 87Sr/86Sr, and clay mineral compositions of eolian dust fractions indicate unequivocally the deposition of Asian dust during Mi-1, and of Central American and South American dust before and after Mi-1. This is attributed to the southward displacement...
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Journal Article
Journal: Geology
Published: 01 August 2014
Geology (2014) 42 (8): 675-678.
...Ali Pourmand; Joseph M. Prospero; Arash Sharifi AbstractMineral dust is an important component of Earth’s climate system and biogeochemical cycles on a global scale. In order to understand the relationship between climate processes in the source areas and the properties of aerosols at distant...
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Journal Article
Journal: Geology
Published: 01 August 2014
Geology (2014) 42 (8): 671-674.
..., and may in the past have been, fertilized by atmospheric dust, promoting the fixation of atmospheric N2 by cyanobacteria. These cyanobacteria provided a source of nitrogen to the rest of the community in this nutrient-poor environment. The fixation of N has imparted a characteristic δ15N signal and has...
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Series: GSA Reviews in Engineering Geology
Published: 01 January 2014
DOI: 10.1130/2014.4122(05)
EISBN: 9780813758220
... severe and can be fatal. The victim will be hot and disoriented or unconscious. Figure 3. U.S. Air Force personnel place a tarp over an HH-60G Pave-hawk helicopter during a dust storm at Balad Air Base, Iraq, 17 April 2008, during Operation Iraqi Freedom. The tarps help prevent small dust...
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Series: GSA Reviews in Engineering Geology
Published: 01 January 2014
DOI: 10.1130/2014.4122(09)
EISBN: 9780813758220
... Table 1. Traffic Type Characteristics, Test Location, and Number of Passes Used to Develop A Dust-Suppressant Test Operations Procedure Vehicle Duty Traffic impact type Weight (kg) Site location Test pass interval APC M113 Armored personnel carrier Tracked 9050...
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Series: GSA Special Papers
Published: 01 September 2013
DOI: 10.1130/2013.2500(15)
... Following the middle of the twentieth century, Earth scientists increasingly became aware of the significant role played by the incorporation of dust in the formation of soils. Dust plays an especially important role in the development of aridland soils, given the usually abundant supply...
Journal Article
Published: 01 August 2013
Mineralogical Magazine (2013) 77 (6): 2793-2810.
..., sphalerite and bornite) and their oxidation products (notably goethite, hematite and jarosite). This mineral assemblage suggests a local source of wind-blown dust and it is consistent with the large deposition levels of sulfide-related elements (As, Bi, Cd, Cu, Pb, Sb and Zn) registered at the sampling site...
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Journal Article
Journal: Geology
Published: 01 April 2012
Geology (2012) 40 (4): 335-338.
...Gaël Le Roux; Nathalie Fagel; Francois De Vleeschouwer; Michael Krachler; Vinciane Debaille; Peter Stille; Nadine Mattielli; W.O. van der Knaap; Jacqueline F.N. van Leeuwen; William Shotyk AbstractAtmospheric dusts are an important part of the global climate system, and play an important role...
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Series: GSA Special Papers
Published: 01 December 2011
DOI: 10.1130/2011.2483(09)
... After the high-radiation environment and the low gravity field on Mars, dust is arguably the next biggest environmental hazard facing a manned mission to Mars. The seriousness of this threat is still being studied with robotic missions. At its most benign, Martian dust the work undertaken were...
Journal Article
Journal: Geology
Published: 01 November 2011
Geology (2011) 39 (11): 1031-1034.
... Loess Plateau was largely sourced from deserts located to the northwest, as observed in the modern interglacial climate. We propose that during glacial periods, the mean annual positions of the polar jet streams were shifted equatorward, resulting in more southerly tracks for dust-generating storms...
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Journal Article
Published: 01 October 2011
Mineralogical Magazine (2011) 75 (5): 2611-2629.
...J. E. S. Barrett; K. G. Taylor; K. A. Hudson-Edwards; J. M. Charnock AbstractX-ray absorption spectroscopy, scanning electron microscopy (SEM) and X-ray diffractometry (XRD) have been used to study the solid-phase speciation of Zn in urban road dust sediments (RDS) in Manchester, UK. X-ray...
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