Abstract
Loess is the accumulation of aeolian deposits. Not only the changes of paleoclimate are recorded in the loess stratum, but it also becomes an area with high development of dry farming, which may develop into the origin of ancient civilization, such as the Yellow River Basin in China. The Ancient Babylonian civilization at Tigris and Euphrates Basin is the oldest civilization all over the world. Equally, western regions of Iran located in lower reaches of Tigris and Euphrates near the Persian Gulf estuary, are an important part of the Ancient Babylonian civilization in the Tigris and Euphrates Basin, where there is a large area of unrecognized aeolian loess. Based on the experiment of environmental magnetism, grain-size, rare earth elements and diffuse reflectance spectra of suspected aeolian deposits samples(32°03'46″N, 48°45'07″E, the section thickness is more than 4 m, no bottom in sight) collected in Shooshtar(SH) Region, Khuzestan, western Iran, in order to explore the environmental information contained in the section, its magnetic properties and the magnetic enhancement mechanism were investigated. The results show that: The grain-size distribution characteristics of loess and the distribution characteristics of rare earth elements in aeolian deposits can be observed in SH section; the magnetic minerals are mainly soft magnetic mineral magnetite and maghemite, which contain a small amount of hard magnetic mineral goethite and hematite, and magnetic particles are characterized by coarse SSD particles. In addition, the magnetic enhancement mechanism of SH section is affected by a weak pedogenesis and externally input magnetic minerals, and the contribution of externally input magnetic minerals is more significant to magnetic susceptibility. Finally, the magnetic susceptibility enhancement mechanism of the SH section is similar to that of the loess-paleosol in northeast Iran, while there are also differences, mainly causing by the disparity of magnetic minerals input from sources and the discrepancy of regional precipitation.
| Translated title of the contribution | Magnetic properties and enhancement mechanism of Shooshtar loess in Western Iran |
|---|---|
| Original language | Chinese (Simplified) |
| Pages (from-to) | 272-287 |
| Number of pages | 16 |
| Journal | Quaternary Sciences |
| Volume | 42 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2022 |
Bibliographical note
Title in Pinyin: yī lǎng xī bù Shooshtar huáng tǔ yán shí cí xué tè zhēng jí zēng qiáng jī zhì yán jiūKeywords
- Ancient Babylon
- Iran loess
- Magnetic enhancement mechanism
- Magnetic susceptibility
- Tigris and Euphrates