干旱区生态环境知识资源中心(Arid): Holocene dust dynamics archives in archaeological ruins in arid and semi-arid environments in the Southern Levant

Arid

DOI	10.1007/s12517-021-08884-5
	Holocene dust dynamics archives in archaeological ruins in arid and semi-arid environments in the Southern Levant
	Lucke, Bernhard; Baeumler, Rupert
通讯作者	Lucke, B (corresponding author), FAU Erlangen Nurnberg, Inst Geog, Wetterkreuz 15, D-91058 Erlangen, Germany.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2021
卷号	14 期号:23
英文摘要	Ruins of archaeological structures, mainly dating to the Bronze Age till Byzantine period, were investigated in a case study in the Petra region in southern Jordan and in the northern Negev desert in Israel. They are covered by post-abandonment debris sediments which provided the parent material of initial soils now developed on the ruins. Such debris sediments have so far rarely been studied although they likely contain a significant aeolian dust fraction because structures and wall remains may act as effective dust traps. We analyzed different types of archaeological structures: cult sites on hilltops, runoff-irrigated terraces on slopes, and cisterns including associated cleanout mounds. As well, we collected current aeolian sediments in nearby dry marble dust traps. It was expected that the various ruins and location types would matter for sediment properties, but substrate composition in all investigated structures was similar. This suggests that most of the fine fractions of the debris material were primarily supplied by wind whereas fluvial processes only re-distributed aeolian sediments. A major aeolian contribution from local weathered rocks could be observed in the Petra region, but not in the Negev, which seems connected with the geology. In situ pedogenesis in both investigation regions is negligible. The ruins seem to act as current dust collectors, but their sediments cannot directly be compared with the material collected in nearby dry marble dust traps. Analogies to different types of collectors for aeolian sediments can be made: depending on design, dust traps gather aeolian material differently. Standard dry marble dust collectors are characterized by similar size of settling dust samples as compared to average aeolian deposition in the ruins, but are of dissimilar substrate composition with regard to particle size distribution and contents of major and trace elements. Sediments in the archaeological structures in southern Jordan show finer textures and higher contents of most major and trace elements which may indicate preferential fixation of silt and clay against sand in the ruins, whereas sediments in dry marble dust collectors in Jordan are relatively depleted in silt and clay. This could be due to crusts and clast covers because the studied archaeological hilltop structures were found covered by surface crusts and pavements of stones and pottery sherds. These may mirror the effect of desert pavements. In addition, current dust samples suggest that precipitation during aeolian sedimentation, in particular in case of snow, is connected with enhanced deposition of (possibly clay-coated) silt. Sediments in the archaeological structures include material from remote and local sources as well as from recycled paleosols. Average hilltop dust accretion rates were calculated as similar to 0.14 mm/year, which is in good agreement with results from dry marble dust collectors. They exceed rates calculated for Pleistocene hilltop loess in the Negev. This seems due to enhanced dust fixation in the archaeological ruins as compared to natural Negev loess soils, underlining a so far rarely considered but important role of sediment fixation mechanisms.
英文关键词	Dust deposition Aeolian sedimentation Dust collector Holocene Archaeological ruins Environmental archive
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000723687300008
WOS关键词	MEDITERRANEAN SOIL PRODUCTIVITY ; NEGEV HIGHLANDS ; QUATERNARY INFLUX ; DESERT ; PLEISTOCENE ; ORIGIN ; LOESS ; DEPOSITION ; CALIBRATION ; DUNES
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374047
作者单位	[Lucke, Bernhard; Baeumler, Rupert] FAU Erlangen Nurnberg, Inst Geog, Wetterkreuz 15, D-91058 Erlangen, Germany
推荐引用方式 GB/T 7714	Lucke, Bernhard,Baeumler, Rupert. Holocene dust dynamics archives in archaeological ruins in arid and semi-arid environments in the Southern Levant[J],2021,14(23).
APA	Lucke, Bernhard,&Baeumler, Rupert.(2021).Holocene dust dynamics archives in archaeological ruins in arid and semi-arid environments in the Southern Levant.ARABIAN JOURNAL OF GEOSCIENCES,14(23).
MLA	Lucke, Bernhard,et al."Holocene dust dynamics archives in archaeological ruins in arid and semi-arid environments in the Southern Levant".ARABIAN JOURNAL OF GEOSCIENCES 14.23(2021).