کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6434335 1637148 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Research paperAn extensional syn-sedimentary structure in the Early Jurassic Trento Platform (Southern Alps, Italy) as analogue of potential hydrocarbon reservoirs developing in rifting-affected carbonate platforms
ترجمه فارسی عنوان
ساختار سازند سنتز رسوبی در پلت فرم ترنتو ژوراسیک اولیه (آلپ جنوبی، ایتالیا) به عنوان آنالوگ مخازن هیدروکربن بالقوه در سیستم های کربناته تحت تاثیر رفته است
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی


- A syn-sedimentary structure in Early Jurassic platform carbonates is examined.
- 3D modeling and porosity analysis are used for the structure's characterization.
- Trap geometry is generated by tectonics and facies changes across the S-P Event.
- Similar structures may develop in analogous rifting settings.

This work focuses on the 3D modeling and structural analysis of the Monte Testo syn-sedimentary structure, developed in the Early Jurassic Calcari Grigi Group of the Trento carbonate platform (Southern Alps, Italy). Significant changes in the facies architecture of the platform sedimentary units, occurred across a global perturbation of the Carbon cycle at the Sinemurian-Pliensbachian boundary, are associated with evidences of syn-sedimentary tectonics. In particular, an early cemented oolitic sedimentary body with a high initial porosity (Loppio Oolitic Limestone) was broken-up and tilted by a pulse of rifting and overlain by tight marls and marly limestones (lower Rotzo Formation) that display sharp changes in thickness across the syn-sedimentary faults. This complex setting creates conditions potentially favorable to hydrocarbon accumulation. In this work, the Monte Testo structure is presented as a conceptual analogue of a hydrocarbon reservoir that may develop thanks to the overlap of the effects of extensional tectonics and climate change-induced modifications in the carbonate platform facies. A 3D geo-model was realized to obtain information about the genesis and tectonic evolution of the structure. Hence, a potential porosity distribution in the 3D model was evaluated showing that such extensional structure, which has a vertical extent of 500 m and covers an area of 15 km2, could have been associated to a total pore volume of 2.24 × 107 m3 at the time of its formation. Results suggest that in rifting contexts the combined effect of syn-sedimentary faulting and facies variations related to perturbations in the global carbon cycle could generate potential reservoirs in carbonate platforms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine and Petroleum Geology - Volume 79, January 2017, Pages 360-371
نویسندگان
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