DOI: 10.1007/s00531-012-0781-4
Scopus记录号: 2-s2.0-84872348007
论文题名: Constraints on the geodynamical evolution of Crete: Insights from illite crystallinity, Raman spectroscopy and calcite twinning above and below the 'Cretan detachment'
作者: Klein T. ; Craddock J.P. ; Zulauf G.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2013
卷: 102, 期: 1 起始页码: 139
结束页码: 182
语种: 英语
英文关键词: Aegean
; Cretan detachment
; Crete
; Hellenides
; Mediterranean
Scopus关键词: calcite
; crustal shortening
; crystallinity
; detachment fault
; exhumation
; extensional tectonics
; geodynamics
; illite
; inversion tectonics
; nappe
; Neogene
; Raman spectroscopy
; shear zone
; tectonic evolution
; twinning
; Aegean Islands
; Crete [Greece]
; Greece
英文摘要: The Alpine nappes of Crete are commonly subdivided into a Lower and an Upper Nappe pile, both of which are considered to be separated by a low-angle extensional shear zone referred to as 'Cretan detachment'. The presence of a detachment at the originally suggested position, however, is not supported by our data: (1) Neogene rocks are sandwiched between Tripolitza Unit and the Lower Nappes. (2) Calcite twinning analyses indicate that the major nappes on Crete were largely affected by subhorizontal, layer-parallel shortening rather than subvertical shortening. (3) Metamorphic Tripolitza carbonates resting on top of non-metamorphic Neogene strata on the one hand and illite crystallinity data on the other indicate inverse metamorphism along the 'Cretan detachment'. (4) Raman spectra of carbonaceous material from rocks below the detachment are locally indicative for very low-grade or an absence of metamorphism within the Lower Nappes, indicating weaknesses of their present tectono-stratigraphical assignment to the Phyllite-Quartzite Unit. (5) Illite crystallinity in the Pindos Unit is substantially lower than in the Tripolitza Unit, although both Units are considered as the Upper Nappes. (6) Oxygene Isotope data indicate precipitation of twinned calcite veins at supercrustal conditions. These findings point to Miocene thrusting at supercrustal conditions, which postdates the exhumation of the Lower Nappes. © 2012 Springer-Verlag. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84872348007&doi=10.1007%2fs00531-012-0781-4&partnerID=40&md5=df8c2427aea602b800c56cede0997e2d
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70607
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
There are no files associated with this item.
作者单位: Blumenäckerweg 18, 34128 Kassel, Germany; Department of Geology, Macalester College, 1600 Grand Avenue, St. Paul, MN, 55105, United States; Institut für Geowissenschaften, J. W. Goethe-Universität, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
Recommended Citation:
Klein T.,Craddock J.P.,Zulauf G.. Constraints on the geodynamical evolution of Crete: Insights from illite crystallinity, Raman spectroscopy and calcite twinning above and below the 'Cretan detachment'[J]. International Journal of Earth Sciences,2013-01-01,102(1)