دورية أكاديمية
Crustal structure in the Southern Apennines from teleseismic receiver functions
| العنوان: | Crustal structure in the Southern Apennines from teleseismic receiver functions |
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| المؤلفون: | Steckler, M. S., Piana Agostinetti, N., Wilson, C. K., Roselli, P., Seeber, L., Amato, A., Lerner-Lam, A. |
| المساهمون: | Steckler, M. S., Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York, Piana Agostinetti, N., Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia, Wilson, C. K., Roselli, P., Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia, Seeber, L., Amato, A., Lerner-Lam, A., Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia |
| بيانات النشر: | Geological Society of America |
| سنة النشر: | 2008 |
| المجموعة: | Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
| مصطلحات موضوعية: | thrust tectonics, Apennines, continental collision, seismology, receiver functions, structural geology, 01. Atmosphere::01.03. Magnetosphere::01.03.04. Structure and dynamics |
| الوصف: | While the upper crustal structure of the Southern Apennines is known, lack of control on the deep structure allows competing thin-skinned and thick-skinned models of the orogen. In thin-skinned models, the detachment decouples a stack of rootless nappes from the basement. In thick-skinned models, basement is involved in the most recent phase of thrusting. To examine crustal structure, we use teleseismic data from the Calabria-Apennine-Tyrrhenian/Subduction- Accretion-Collision Network (CAT/SCAN) array in southern Italy. We use receiver functions (RF) processed into a common conversion point stack to generate images of the crust. Inter- pretation and correlation to geological structure are done using inversions of individual station RFs. We focus on a shallow discontinuity where P-to-S conversions occur. In the foreland, it corresponds to velocity jumps between carbonate and clastic strata with basement. A similar interpretation for the Apennines provides the most parsimonious explanation and supports a thick-skinned interpretation. In a thick-skinned reconstruction, the amount of shortening is much smaller than for a thin-skinned model. This implies considerably less Pliocene–Pleistocene shortening across the Apennines and suggests an east-southeast motion of the Calabrian arc subparallel to the southern Apennines rather than a radial expansion of the arc. ; Published ; 155-158 ; 3.3. Geodinamica e struttura dell'interno della Terra ; JCR Journal ; reserved |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | Geology; 2/36 (2008); http://hdl.handle.net/2122/3309Test; http://hdl.handle.net/2122/4545Test |
| DOI: | 10.1130/G24065A.1 |
| الإتاحة: | https://doi.org/10.1130/G24065A.1Test http://hdl.handle.net/2122/4545Test |
| حقوق: | restricted |
| رقم الانضمام: | edsbas.8AEF70B9 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1130/G24065A.1 |
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