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武泽阿尔姆（奥地利东阿尔卑斯山）侏罗纪海底盐异地岩体的位置及相关沉积记录。

Emplacement and associated sedimentary record of the Jurassic submarine salt allochthon of the Wurzeralm (Eastern Alps, Austria).

作者信息

Kurz Maditha, Fernandez Oscar, Eggerth Lino, Grasemann Bernhard, Strauss Philipp

机构信息

Department of Geology University of Vienna Vienna Austria.

OMV Vienna Austria.

出版信息

Terra Nova. 2023 Dec;35(6):524-532. doi: 10.1111/ter.12675. Epub 2023 Aug 7.

DOI:10.1111/ter.12675
PMID:38524903
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10958983/
Abstract

A fossil salt sheet emplaced in the Jurassic in submarine conditions is described in the Eastern Alps of Austria, providing unique insights into the emplacement of similar submarine structures and their potential control on depositional systems. The salt sheet is a plug-fed extrusion emplaced due to squeezing of a salt diapir under compression. The preserved mylonitic shear fabric in the evaporites indicates radial, south-directed emplacement of the salt sheet. Tectono-sedimentary relationships record the evolution of the salt structure, from initial diapiric growth, to salt sheet extrusion and posterior collapse. Syn-extrusion sediments record the variable bathymetry of the extruding salt sheet, with reefal carbonates building up on the crestal bulge while their deeper water equivalents accumulated on the extruding salt lobe. This is the first description of a salt allochthon still linked to its source diapir in the Eastern Alps.

摘要

在奥地利东阿尔卑斯山描述了一个在侏罗纪时期海底条件下就位的化石盐席，这为了解类似海底构造的就位及其对沉积体系的潜在控制提供了独特视角。该盐席是由于盐底辟在挤压作用下被挤出而形成的柱塞式挤压体。蒸发岩中保存的糜棱岩剪切构造表明盐席呈放射状向南就位。构造 - 沉积关系记录了盐构造的演化，从最初的底辟生长，到盐席挤出和后期塌陷。同挤出沉积物记录了挤出盐席的可变水深，礁灰岩在顶部隆起处堆积，而其深水对应物则在挤出的盐叶上堆积。这是首次对东阿尔卑斯山仍与其源底辟相连的盐外来体进行描述。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/4af88e63de1e/TER-35-524-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/7e74b18c9dc8/TER-35-524-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/521c1359eb62/TER-35-524-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/622e4d074cea/TER-35-524-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/3ff8eaa9652d/TER-35-524-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/4af88e63de1e/TER-35-524-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/7e74b18c9dc8/TER-35-524-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/521c1359eb62/TER-35-524-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/622e4d074cea/TER-35-524-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/3ff8eaa9652d/TER-35-524-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/480c/10958983/4af88e63de1e/TER-35-524-g004.jpg

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引用本文的文献

1
Salt-rich versus salt-poor structural scenarios in the central Northern Calcareous Alps: implications for the Hallstatt facies and early Alpine tectonic evolution (Eastern Alps, Austria).北钙质阿尔卑斯山脉中部富盐与贫盐构造情景：对哈尔施塔特相及早期阿尔卑斯构造演化的影响（奥地利东阿尔卑斯山脉）
Int J Earth Sci. 2024;113(2):245-283. doi: 10.1007/s00531-023-02377-4. Epub 2024 Jan 26.

本文引用的文献

1
Salt-rich versus salt-poor structural scenarios in the central Northern Calcareous Alps: implications for the Hallstatt facies and early Alpine tectonic evolution (Eastern Alps, Austria).北钙质阿尔卑斯山脉中部富盐与贫盐构造情景：对哈尔施塔特相及早期阿尔卑斯构造演化的影响（奥地利东阿尔卑斯山脉）
Int J Earth Sci. 2024;113(2):245-283. doi: 10.1007/s00531-023-02377-4. Epub 2024 Jan 26.
2
The Haselgebirge evaporitic mélange in central Northern Calcareous Alps (Austria): Part of the Permian to Lower Triassic rift of the Meliata ocean?奥地利北钙质阿尔卑斯山中部的哈塞尔山蒸发混杂岩：是梅利亚塔洋二叠纪至下三叠纪裂谷的一部分吗？
Tectonophysics. 2013 Jan 11;583:28-48. doi: 10.1016/j.tecto.2012.10.016.