3-D assessment of peak-metamorphic conditions by Raman spectroscopy of carbonaceous material: an example from the margin of the Lepontine dome (Swiss Central Alps)
3-D assessment of peak-metamorphic conditions by Raman spectroscopy of carbonaceous material: an example from the margin of the Lepontine dome (Swiss Central Alps)
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通过碳质材料拉曼光谱对峰值变质条件进行 3D 评估：来自 Lepontine 圆顶边缘的示例（瑞士中部阿尔卑斯山）
DOI：
10.1007/s00531-010-0622-2
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发表时间：
2011
影响因子：
2.3
通讯作者：
S. Schmid
中科院分区：
文献类型：
--
作者：
M. Wiederkehr;R. Bousquet;M. Ziemann;A. Berger;S. Schmid
本研究监测区域的碳质物质（CM）的结晶度的变化，通过应用显微拉曼光谱，共214个变质沉积物样品（主要是所谓的Bündnerhenefer）占主导地位的变质下蓝片岩角闪岩相条件。它们是在勒蓬廷圆顶的东北边缘和瑞士中央阿尔卑斯山的东部邻近地区收集的。在地图和剖面图中绘制的等温线的三维图显示，与中新世巴罗型Lepontine变质事件相关的等温线穿过重折叠推覆接触，沿着和在Lepontine穹丘东北缘和邻近地区内的走向。进一步向东北，等温线反映了晚始新世俯冲相关的蓝片岩相事件和/或随后的近等温减压过程中达到的温度;这些等值线出现年轻的大规模推覆后叠加褶皱。在阿都拉推覆体前缘与周围变质沉积物之间的构造接触面上，记录到的最高温度出现了大幅跳跃，这表明，在阿都拉推覆体北方达到最高温度之后，即晚始新世之后，该接触面容纳了阿都拉推覆体相对于包封的Bündnerhenefer的差异构造运动。
This study monitors regional changes in the crystallinity of carbonaceous matter (CM) by applying Micro-Raman spectroscopy to a total of 214 metasediment samples (largely so-called Bündnerschiefer) dominantly metamorphosed under blueschist- to amphibolite-facies conditions. They were collected within the northeastern margin of the Lepontine dome and easterly adjacent areas of the Swiss Central Alps. Three-dimensional mapping of isotemperature contours in map and profile views shows that the isotemperature contours associated with the Miocene Barrow-type Lepontine metamorphic event cut across refolded nappe contacts, both along and across strike within the northeastern margin of the Lepontine dome and adjacent areas. Further to the northeast, the isotemperature contours reflect temperatures reached during the Late Eocene subduction-related blueschist-facies event and/or during subsequent near-isothermal decompression; these contours appear folded by younger, large-scale post-nappe-stacking folds. A substantial jump in the recorded maximum temperatures across the tectonic contact between the frontal Adula nappe complex and surrounding metasediments indicates that this contact accommodated differential tectonic movement of the Adula nappe with respect to the enveloping Bündnerschiefer after maximum temperatures were reached within the northern Adula nappe, i.e. after Late Eocene time.
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影响因子：
4.2
作者：
M. Frey
通讯作者：
M. Frey
影响因子：
3.4
作者：
B. Goffé;R. Bousquet;P. Henry;X. Le Pichon
通讯作者：
B. Goffé;R. Bousquet;P. Henry;X. Le Pichon
影响因子：
2.8
作者：
G. Nover;J. Stoll;J. V. D. Gönna
通讯作者：
G. Nover;J. Stoll;J. V. D. Gönna
影响因子：
--
作者：
P. Agard;L. Jolivet;B. Goffé
通讯作者：
P. Agard;L. Jolivet;B. Goffé
Natriumamphbolführende 变态基础 Gesteine aus den Bündnerschiefern Graubundens
DOI：
--
发表时间：
1977
期刊：
影响因子：
--
作者：
R. Oberhänsli
通讯作者：
R. Oberhänsli