The First Russian-Mongolian Meteorite Expedition to the Gobi Desert

2020 ◽  
pp. 185-190
Author(s):  
Aleksander Yu. Pastukhovich ◽  
S. Demberel ◽  
Viktor I. Grokhovsky ◽  
Viktor V. Sharygin ◽  
Stepan V. Berzin ◽  
...  
Keyword(s):  
Gobi Desert

Limits to recharge of groundwater from Tibetan plateau to the Gobi desert, implications for water management in the mountain front

2009 ◽  
Vol 364 (1-2) ◽  
pp. 128-141 ◽  
Author(s):  
Jinzhu Ma ◽  
Zhenyu Ding ◽  
W. Mike Edmunds ◽  
John B. Gates ◽  
Tianming Huang
Keyword(s):  
Water Management ◽  
Tibetan Plateau ◽  
Gobi Desert ◽  
Mountain Front

THE MYSTERIES OF THE GOBI DESERT

Asian Affairs ◽  
2009 ◽  
Vol 40 (3) ◽  
pp. 408-417 ◽  
Author(s):  
John Hare
Keyword(s):  
Gobi Desert

Through Jade Gate and Central Asia: An Account of Journeys in Kansu, Turkestan and the Gobi Desert

1928 ◽  
Vol 71 (3) ◽  
pp. 291
Author(s):  
F. E. Y. ◽  
Mildred Cable ◽  
Francesca French
Keyword(s):  
Central Asia ◽  
Gobi Desert

OSL dating of sediments from the Gobi Desert, Southern Mongolia

2010 ◽  
Vol 5 (2-3) ◽  
pp. 107-113 ◽  
Author(s):  
D. Hülle ◽  
A. Hilgers ◽  
U. Radtke ◽  
C. Stolz ◽  
N. Hempelmann ◽  
...  
Keyword(s):  
Osl Dating ◽  
Gobi Desert

Riddles of the Gobi Desert

Parnassus ◽  
1936 ◽  
Vol 8 (4) ◽  
pp. 38
Author(s):  
A. Philip McMahon ◽  
Sven Hedin
Keyword(s):  
Gobi Desert

scholarly journals Methods and Results of the American Museum Expeditions in the Gobi Desert, 1922–25

Nature ◽  
1926 ◽  
Vol 118 (2962) ◽  
pp. 198-199 ◽  
Author(s):  
HENRY FAIRFIELD OSBORN
Keyword(s):  
Gobi Desert ◽  
American Museum

LITHOBIOTOPES OF THE NEMEGT GOBI BASIN

2021 ◽  
Author(s):  
Tomasz Jerzykiewicz ◽  
Philip J. Currie ◽  
Federico Fanti ◽  
Jerzy Lefeld
Keyword(s):  
Upper Cretaceous ◽  
Alluvial Plain ◽  
Gobi Desert ◽  
Large Species ◽  
Physical Processes ◽  
Desert Region ◽  
Ephemeral Channels ◽  
Temporal Succession ◽  
Asymmetric Distributions ◽  
Rich Fauna

Three distinct but overlapping dinosaur-dominated faunas characterize the Upper Cretaceous Djadokhta, Baruungoyot and Nemegt formations of the Nemegt Basin of Mongolia. Documented faunal differences cannot be explained easily by temporal succession, but can be understood in the light of physical processes controlling life, death, and burial of taxa. The stratigraphy of the Gobi Desert region records tectonically driven geometries, clearly documenting preservational processes different than those acting in most other dinosaur-dominated beds worldwide. Small, asymmetric tectonic grabens were filled with Upper Cretaceous, dinosaur bearing deposits showing asymmetric distributions of facies, here termed Lithobiotopes. The water-lain fluvial and alluvial plain facies of the Nemegt Lithobiotope supported and preserved a fauna dominated by gigantic dinosaurs, but had a preservational bias against smaller animals. The Nemegt passed laterally into interdune facies of the Baruungoyot Lithobiotope, which represented a hostile environment for large species, but preserved smaller animals. This in turn passed laterally into the aeolianite facies of the Djadokhta Lithobiotope, which is characterized by remains of small dinosaurs and a rich fauna of other animals. The Nemegt Gobi Basin can be visualized as an oasis with a central pond supplied with water from ephemeral channels and surrounded by a semi-arid alluvial plain and dune fields.

scholarly journals Simulation of heterogeneous photooxidation of SO<sub>2</sub> and NO<sub><i>x</i></sub> in the presence of Gobi Desert dust particles under ambient sunlight

2018 ◽  
Vol 18 (19) ◽  
pp. 14609-14622 ◽  
Author(s):  
Zechen Yu ◽  
Myoseon Jang
Keyword(s):  
Urban Areas ◽  
Mineral Dust ◽  
Buffering Capacity ◽  
Dust Particles ◽  
Gobi Desert ◽  
Heterogeneous Chemistry ◽  
Desert Dust ◽  
Malachite Green Dye ◽  
Photodegradation Rate ◽  
Nitrate Salts

Abstract. To improve the simulation of the heterogeneous oxidation of SO2 and NOx in the presence of authentic mineral dust particles under ambient environmental conditions, the explicit kinetic mechanisms were constructed in the Atmospheric Mineral Aerosol Reaction (AMAR) model. The formation of sulfate and nitrate was divided into three phases: the gas phase, the non-dust aqueous phase, and the dust phase. In particular, AMAR established the mechanistic role of dust chemical characteristics (e.g., photoactivation, hygroscopicity, and buffering capacity) in heterogeneous chemistry. The photoactivation kinetic process of different dust particles was built into the model by measuring the photodegradation rate constant of an impregnated surrogate (malachite green dye) on a dust filter sample (e.g., Arizona test dust – ATD – and Gobi Desert dust – GDD) using an online reflective UV–visible spectrometer. The photoactivation parameters were integrated with the heterogeneous chemistry to predict the formation of reactive oxygen species on dust surfaces. A mathematical equation for the hygroscopicity of dust particles was also included in the AMAR model to process the multiphase partitioning of trace gases and in-particle chemistry. The buffering capacity of dust, which is related to the neutralization of dust alkaline carbonates with inorganic acids, was included in the model to dynamically predict the hygroscopicity of aged dust. The AMAR model simulated the formation of sulfate and nitrate using experimental data obtained in the presence of authentic mineral dust under ambient sunlight using a large outdoor smog chamber (University of Florida Atmospheric Photochemical Outdoor Reactor, UF-APHOR). Overall, the influence of GDD on the heterogeneous chemistry was much greater than that of ATD. Based on the model analysis, GDD enhanced the sulfate formation mainly via its high photoactivation capability. In the case of NO2 oxidation, dust-phase nitrate formation is mainly regulated by the buffering capacity of dust. The measured buffering capacity of GDD was 2 times greater than that of ATD, and consequently, the maximum nitrate concentration with GDD was nearly 2 times higher than that with ATD. The model also highlights that in urban areas with high NOx concentrations, hygroscopic nitrate salts quickly form via titration of the carbonates in the dust particles, but in the presence of SO2, the nitrate salts are gradually depleted by the formation of sulfate.

scholarly journals Contraction of the Gobi Desert, 2000–2012

2015 ◽  
Vol 7 (2) ◽  
pp. 1346-1358 ◽  
Author(s):  
Troy Sternberg ◽  
Henri Rueff ◽  
Nick Middleton
Keyword(s):  
Gobi Desert
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