کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4691224 1636713 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The upper crust of the Eastern Tennessee Seismic Zone: Insights from potential fields inversion
ترجمه فارسی عنوان
قسمت فوقانی منطقه لرزه ای تنسی شرقی: بینش از وارونگی زمینه های بالقوه
کلمات کلیدی
ETSZ؛ NY-AL lineament؛ انحراف مغناطیسی؛ انحراف گرانشی؛ عمق به زیرزمین
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی


• Euler deconvolution of magnetic and gravity data
• Depth to the basement in the Eastern Tennessee Seismic Zone
• NY-AL magnetic lineament as an intra-Grenville tectonic feature

The study investigates the crustal structure of the eastern Tennessee seismic zone (ETSZ) by means of potential field inversion through the located Euler deconvolution method. Inversion of magnetic field data shows that the top of the magnetic basement ranges between 6 and 12 km depth in the Valley and Ridge physiographic province while it is shallower (< 2 km depth) and locally outcropping in the Blue Ridge and Cumberland Plateau provinces. The estimated depth to the top of the magnetic basement is in general agreement with existing sedimentary cover maps of the broad study area. The inversion of gravity data is much more ambiguous, pointing to a generally deeper source, than magnetic data inversion. The findings support the interpretation of ETSZ seismicity as originating in basement structures not related to Appalachian orogeny and likely dating to Grenville age.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tectonophysics - Volume 685, 20 August 2016, Pages 1–7
نویسندگان
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