نتایج جستجو برای: loess

تعداد نتایج: 3659  

Journal: :American Journal of Science 1898

Journal: :New Zealand Journal of Geology and Geophysics 1973

Journal: :E3S web of conferences 2023

Loess is a kind of special sediment with pore structure and rich carbonate in its composition. Due to the characteristics composition, most loess has collapsibility. There are resources distributed northwest area China. With improvement traffic network west area, use as roadbed gradually increasing. Therefore, during construction process, engineering problems encountered by also increased, whic...

ژورنال: کواترنری ایران 2019
Azizi, Ghasem , Kehl, Martin, Khormali, Farhad, Maleki , Sahar, Shahbazi, Reza,

Introduction   One of the processes of the Quaternary era is the glacial and interglacial periods. In the glacial period, loesses deposited and in the interglacial period, Paleosoils were formed. The northern part of Iran is geographically the same as countries such as China, a large part of which has been covered with loess sediments during the Pleistocene glacial period. Loess sediments in ...

Journal: :Sustainability 2022

Loess landslides caused by the dry-wet cycling processes are most common geological disasters in Yili region of China and have significant economic loss casualties. Therefore, there is an urgency to study mechanism landslide disasters. However, research on loess under conditions River Valley still underdeveloped, foundations relatively weak. Based characteristics high stable mica content loess,...

Journal: :Quaternary 2023

Typical patterns of the Late Pleistocene loess–paleosol units are preserved in Novo Orahovo brickyard, Northern Serbia. Presented preliminary luminescence chronology supports chronostratigraphic interpretations global isotopic marine climate reconstructions. Magnetic susceptibility and sedimentological evidence exhibit general similarities with oxygen-isotope stratigraphy. These records provide...

Journal: :Arabian Journal of Geosciences 2021

Image recognition technology is an important part of machine vision applications. In the process image recognition, perception mechanism must exclude input redundant information and extract information. Loess rich in calcium carbonate, its particles are mainly composed silt soil with obvious pores between particles. basin characterized by high water content, easy collapse, strong permeability. ...

Journal: :Catena 2022

Loess may be integrated into slope deposits at different soil depths and influence related physical, chemical mineralogical properties. Therefore, tracking the border between deposited loess underlying materials estimating depth of penetration is a challenge. Five soils from Lower Silesia province in south-western Poland having types geologic substrate being covered by various thicknesses were ...

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