000			02964nmc a2200301 4500
005			20260520005437.0
008			260224s xxu esp
041			_aEspañol
082			_a068.82 553.28 C62 2018 0015644
245	0	0	_aSeismic imaging and petroleum implications of igneous intrusions in sedimentary basins constrained by outcrop analogues and seismic data from the Neuquén basin and the ne Atlantic
270			_a30/06/2022 ; 21/02/2019
300			_a22 p. ; 343-365
520			_aIgneous sheet intrusions are commonly present in prospective sedimentary basins worldwide and may have a wide impact on all aspects of a working petroleum system including maturation, migration, and trapping of hydrocarbons. We have interpreted a major sill complex of 80,000 km2 in the Vøring and Møre basins offshore mid-Norway based on seismic characteristics such as high amplitude reflections and saucer-shaped geometries. The sills are commonly associated with pipe-like hydrothermal vent complexes. However, only a few intrusions and vents have been drilled in this region. Recently we have conducted field work in the Neuquén Basin, Argentina, on kilometer-scale outcrop sections where sill complexes are intruded into Cretaceous host rocks, in order to better constrain the seismic wave propagation and imaging implications of sill-sediment complexes. Seismic modeling studies based on field analogues represent an important tool to close the scale gap between observations from outcrops and seismic data and to support seismic interpretation. Virtual outcrop models are generated based on photogrammetric imaging, and seismic properties are constrained from borehole data. Our results indicate that the seismic signatures of outcrop-scale geological features observed in field analogues are characterized by frequency-dependent interference and strong variations depending on the elastic properties of both host rock and sills. The high velocity of intrusions leads to strong attenuation, offset-dependent tuning, post-critical reflections, and converted waves. The results from the integrated modeling approach have led to more reliable interpretations of the presence, thickness, and distribution of sills in seismic data in volcanic basins, and an understanding of the implications of sills on the hydrocarbon system in extensional and compressional basins.
773			_g
942			_cCONGTP
100	1		_aPlanke, Sverre _9629
100	1		_aRabbel, Ole _9630
100	1		_aGalland, Olivier _9631
100	1		_aMillet, John M. _9632
100	1		_aManton, Ben _9633
100	1		_aJerram, Dougal A. _9634
100	1		_aPalma, Octavio J. _9635
100	1		_aSpacapan, Juan B. _9636
111	2		_aSimposio de Geofísica (2018 nov. 5 - 9 : Mendoza) _9561
650		0	_aNeuquén _9637
999			_c128399 _d128399
856			_uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/SGeof/1505.pdf