Jaime Urrutia Fucugauchi - Academia.edu (original) (raw)

Books by Jaime Urrutia Fucugauchi

Este libro presenta las diversas facetas de la química: la formación del universo, la constitució... more Este libro presenta las diversas facetas de la química: la formación del universo, la constitución de la tierra, el origen de la vida, la medicina, la música y las huellas de actividades humanas.

Papers by Jaime Urrutia Fucugauchi

2017 AGU Fall Meeting, Dec 12, 2017

AGU Spring Meeting Abstracts, May 1, 2013

AGU Fall Meeting Abstracts, Dec 1, 2014

Eos, Transactions American Geophysical Union, 1982

Pure and Applied Geophysics, 2021

Large impact structures are characterized by peak ring and central uplifts with lateral/vertical ... more Large impact structures are characterized by peak ring and central uplifts with lateral/vertical mass transport during late formation stages. Here we investigate the Chicxulub crater, which has been surveyed by an array of marine, aerial and land-borne geophysical methods. Seismic reflection surveys in its central sector have shown lack of resolution, making it difficult to image the central uplift. We develop an integrated seismic and gravity model for the structural elements, imaging the central uplift and melt and breccia units. The 3D velocity model built from interpolation of seismic data is validated using perfectly matched layer seismic acoustic wave propagation modeling, optimized at grazing incidence using the shift in the frequency domain. Modeling shows that lack of illumination relates to seismic energy that remains trapped in an upper low-velocity zone corresponding to the carbonate sediments, upper melt/breccias and surrounding faulted blocks. After conversion of seismic velocities into a volume of density values, we apply parallel forward gravity modeling to constrain the size and shape of the central uplift, which has a ~ 40 km diameter concave upwards top lying at ~ 3.5–4.5 km depth. The preferred model provides a high-resolution image of crater units and structure. The gravity response of modeled units shows asymmetries in structure and the distribution of breccias, melt and target carbonates. Finally, we apply an adjoint reverse time migration approach for seismic imaging using the density and velocity models built for the acoustic wave propagation and gravity modeling, which allows improved modeling of the crater structure.

International Journal of Geophysics, 2016

We present a three-dimensional (3D) gravity modeling and inversion approach and its application t... more We present a three-dimensional (3D) gravity modeling and inversion approach and its application to complex geological settings characterized by several allochthonous salt bodies embedded in terrigenous sediments. Synthetic gravity data were computed for 3D forward modeling of salt bodies interpreted from Prestack Depth Migration (PSDM) seismic images. Density contrasts for the salt bodies surrounded by sedimentary units are derived from density-compaction curves for the northern Gulf of Mexico’s oil exploration surveys. By integrating results from different shape- and depth-source estimation algorithms, we built an initial model for the gravity anomaly inversion. We then applied a numerically optimized 3D simulated annealing gravity inversion method. The inverted 3D density model successfully retrieves the synthetic salt body ensemble. Results highlight the significance of integrating high-resolution potential field data for salt and subsalt imaging in oil exploration.

Quaternary Research, 1993

In order to establish paleoenvironmental conditions during the late Quaternary, four cores from t... more In order to establish paleoenvironmental conditions during the late Quaternary, four cores from the Basin of Mexico (central Mexico) were drilled in Chalco Lake, located in the southeastern part of the basin. The upper 8 m of two parallel cores were studied, using paleomagnetic, loss-on-ignition, pollen, and diatom analyses. Based on 11 14C ages, the analyzed record spans the last 19,000 14C yr B.P. Volcanic activity has affected microfossil abundances, both directly and indirectly, resulting in absence or reduction of pollen and diatom assemblages. Important volcanic activity took place between 19,000 and 15,000 yr B.P. when the lake was a shallow alkaline marsh and an increase of grassland pollen suggests a dry, cold climate. During this interval, abrupt environmental changes with increasing moisture occurred. From 15,000 until 12,500 yr B.P. the lake level increased and the pollen indicates wetter conditions. The highest lake level is registered from 12,500 to ca. 9000 yr B.P. Th...

Geofísica Internacional, 1999

Se presentan resultados iniciales de un proyecto de largo plazo relacionados con los cambios temp... more Se presentan resultados iniciales de un proyecto de largo plazo relacionados con los cambios temporales de las anomalías magnéticas sobre el Volcán de Colima. Este volcán se ha caracterizado por eventos eruptivos frecuentes en tiempos históricos. La actividad presente incluye el crecimiento de un domo de lava en la cima del cráter. Medidas del campo magnético total se tomaron en estaciones espaciadas cada 0.5 km a lo largo de una sección de 35 km que cubre el flanco este y parte de la cima entre Atenquique y El Playón, en un periodo que cubre del 27 de abril de 1995 al 16 de mayo de 1996. Se han reconocido 3 diferentes zonas con características magnéticas anómalas a lo largo de la sección. (1) La zona asociada a avalanchas de escombros del Nevado de Colima y depósitos volcano-conglomeráticos de la Formación Atenquique, entre las estaciones km 10 y 23, caracterizados por anomalías de amplitudes y frecuencias bajas sin cambios magnéticos temporales. (2) La zona de lavas y brechas ande...

Marine Geology, 2014

We present the first multibeam bathymetric maps of the Campeche Escarpment, a Mesozoic carbonate ... more We present the first multibeam bathymetric maps of the Campeche Escarpment, a Mesozoic carbonate platform in the Gulf of Mexico, which represents the closest Cretaceous-Paleogene (K-Pg) boundary outcrops to the Chicxulub impact structure. The impact of an extraterrestrial-body~65 million years ago on top of this platform is implicated in the end of the Cretaceous mass extinction and caused the largest debris flow yet described on Earth, which is found across the floor of the Gulf of Mexico and the Caribbean Sea. The location of the K-Pg boundary has been identified in the escarpment face by combining the new multibeam data with existing information from boreholes. The boundary is represented by an abrupt change in gradient on the escarpment face. The morphology of the escarpment combined with seismic data reveals that a significant amount of material is missing from the face, which failed catastrophically due to seismic shaking produced by the impact. The escarpment face is inferred to be an important source for the extensive debris flows triggered by the impact, whose deposits are found throughout much of the Gulf of Mexico.

Proceedings of the National Academy of Sciences, 2004

Since the early l990s the Chicxulub crater on Yucatan, Mexico, has been hailed as the smoking gun... more Since the early l990s the Chicxulub crater on Yucatan, Mexico, has been hailed as the smoking gun that proves the hypothesis that an asteroid killed the dinosaurs and caused the mass extinction of many other organisms at the Cretaceous-Tertiary (K-T) boundary 65 million years ago. Here, we report evidence from a previously uninvestigated core, Yaxcopoil-1, drilled within the Chicxulub crater, indicating that this impact predated the K-T boundary by ≈300,000 years and thus did not cause the end-Cretaceous mass extinction as commonly believed. The evidence supporting a pre-K-T age was obtained from Yaxcopoil-1 based on five independent proxies, each with characteristic signals across the K-T transition: sedimentology, biostratigraphy, magnetostratigraphy, stable isotopes, and iridium. These data are consistent with earlier evidence for a late Maastrichtian age of the microtektite deposits in northeastern Mexico.

Physics of the Earth and Planetary Interiors, 1996

volcano slope varies from 5°to a near-horizontal (approximately 1°) coastal terrace up to 3 km wi... more volcano slope varies from 5°to a near-horizontal (approximately 1°) coastal terrace up to 3 km wide. The Pohue Bay flow can be followed from the coastline up to an elevation of 920 m, and its vent area (higher still) is on the southwest rift zone (Fig.

Physics of the Earth and Planetary Interiors, 1977

... More recent geological work was done by Clark (1947, 1964a, b, 1970), Cooke (1952), Lespe ran... more ... More recent geological work was done by Clark (1947, 1964a, b, 1970), Cooke (1952), Lespe rance (1963) and Globensky (1969). ... of diorite and altered gabbro outcrop some 2,000 m to the east of the shoreline of the St.Lawrence River and 3 km WSW of St.Nicolas located to ...

Meteoritics & Planetary Science, 2004

The Chicxulub Scientific Drilling Project (CSDP), Mexico, produced a continuous core of material ... more The Chicxulub Scientific Drilling Project (CSDP), Mexico, produced a continuous core of material from depths of 404 to 1511 m in the Yaxcopoil-1 (Yax-1) borehole, revealing (top to bottom) Tertiary marine sediments, polymict breccias, an impact melt unit, and one or more blocks of Cretaceous target sediments that are crosscut with impact-generated dikes, in a region that lies between the peak ring and final crater rim. The impact melt and breccias in the Yax-1 borehole are 100 m thick, which is approximately 1/5 the thickness of breccias and melts exposed in the Yucatán-6 exploration hole, which is also thought to be located between the peak ring and final rim of the Chicxulub crater. The sequence and composition of impact melts and breccias are grossly similar to those in the Yucatán-6 hole. Compared to breccias in other impact craters, the Chicxulub breccias are incredibly rich in silicate melt fragments (up to 84% versus 30 to 50%, for example, in the Ries). The melt in the Yax-1 hole was produced largely from the silicate basement lithologies that lie beneath a 3 km-thick carbonate platform in the target area. Small amounts of immiscible molten carbonate were ejected with the silicate melt, and clastic carbonate often forms the matrix of the polymict breccias. The melt unit appears to have been deposited while molten but brecciated after solidification. The melt fragments in the polymict breccias appear to have solidified in flight, before deposition, and fractured during transport and deposition.

Materials Science and Engineering: B, 2000

We report an improved recipe for synthesizing high quality graphene through chemical vapor deposi... more We report an improved recipe for synthesizing high quality graphene through chemical vapor deposition (CVD), scanning electron microscopy (SEM) characterization of CVD graphene, and optimized SEM imaging conditions for efficient visualization of surface features in CVD graphene. We have developed an optimized graphene growth recipe by characterizing the quality of as-grown graphene using Raman spectroscopy and SEM. We have examined graphene samples both on copper (Cu) and silicon dioxide (SiO 2) substrate using SEM. We have found that features on the samples are highly sensitive to both SEM imaging conditions and the type of detector used. With low acceleration voltage (1 keV), immersion lenses, and through the lens detector, we have clearly observed fine features including wrinkles, folding lines, defects, and different layer numbers of graphene, many of which are not visible in un-optimized SEM images. Further, we demonstrate mechanical bulging of suspended CVD graphene membranes covering microtrenches by using electron beam to activate the trapped gas underneath. Our findings and techniques can lead to improved characterization, understanding, and manipulation of graphene and other two-dimensional materials.

Journal of Geophysics and Engineering, 2005

Seismic attenuation analysis is used to distinguish changes in the spectral and amplitude charact... more Seismic attenuation analysis is used to distinguish changes in the spectral and amplitude characteristics of the seismic signal with the purpose of identifying the presence of fluids and fractures within the rock system. The analysis of such changes can be used as a tool for characterizing rock properties and for understanding the behaviour of wave propagation in a complex environment comprised by pores and cracks containing fluids. The study is carried out using high-resolution reflection data obtained from a mature fractured carbonate reservoir near the northeast coast of Mexico. Production from this reservoir is declining considerably. For this reason, a horizontal drilling programme is being considered. The results obtained from in situ measurements indicate that spectral changes and attenuation anomalies are related to the presence of hydrocarbons in the fractured reservoir rocks; however, such anomalies are also related to wave scattering in highly fractured areas. The seismic attenuation patterns associated with the productive zones have helped to identify new potential areas and horizontal drilling targets.

Este libro presenta las diversas facetas de la química: la formación del universo, la constitució... more Este libro presenta las diversas facetas de la química: la formación del universo, la constitución de la tierra, el origen de la vida, la medicina, la música y las huellas de actividades humanas.

2017 AGU Fall Meeting, Dec 12, 2017

AGU Spring Meeting Abstracts, May 1, 2013

AGU Fall Meeting Abstracts, Dec 1, 2014

Eos, Transactions American Geophysical Union, 1982

Pure and Applied Geophysics, 2021

Large impact structures are characterized by peak ring and central uplifts with lateral/vertical ... more Large impact structures are characterized by peak ring and central uplifts with lateral/vertical mass transport during late formation stages. Here we investigate the Chicxulub crater, which has been surveyed by an array of marine, aerial and land-borne geophysical methods. Seismic reflection surveys in its central sector have shown lack of resolution, making it difficult to image the central uplift. We develop an integrated seismic and gravity model for the structural elements, imaging the central uplift and melt and breccia units. The 3D velocity model built from interpolation of seismic data is validated using perfectly matched layer seismic acoustic wave propagation modeling, optimized at grazing incidence using the shift in the frequency domain. Modeling shows that lack of illumination relates to seismic energy that remains trapped in an upper low-velocity zone corresponding to the carbonate sediments, upper melt/breccias and surrounding faulted blocks. After conversion of seismic velocities into a volume of density values, we apply parallel forward gravity modeling to constrain the size and shape of the central uplift, which has a ~ 40 km diameter concave upwards top lying at ~ 3.5–4.5 km depth. The preferred model provides a high-resolution image of crater units and structure. The gravity response of modeled units shows asymmetries in structure and the distribution of breccias, melt and target carbonates. Finally, we apply an adjoint reverse time migration approach for seismic imaging using the density and velocity models built for the acoustic wave propagation and gravity modeling, which allows improved modeling of the crater structure.

International Journal of Geophysics, 2016

We present a three-dimensional (3D) gravity modeling and inversion approach and its application t... more We present a three-dimensional (3D) gravity modeling and inversion approach and its application to complex geological settings characterized by several allochthonous salt bodies embedded in terrigenous sediments. Synthetic gravity data were computed for 3D forward modeling of salt bodies interpreted from Prestack Depth Migration (PSDM) seismic images. Density contrasts for the salt bodies surrounded by sedimentary units are derived from density-compaction curves for the northern Gulf of Mexico’s oil exploration surveys. By integrating results from different shape- and depth-source estimation algorithms, we built an initial model for the gravity anomaly inversion. We then applied a numerically optimized 3D simulated annealing gravity inversion method. The inverted 3D density model successfully retrieves the synthetic salt body ensemble. Results highlight the significance of integrating high-resolution potential field data for salt and subsalt imaging in oil exploration.

Quaternary Research, 1993

In order to establish paleoenvironmental conditions during the late Quaternary, four cores from t... more In order to establish paleoenvironmental conditions during the late Quaternary, four cores from the Basin of Mexico (central Mexico) were drilled in Chalco Lake, located in the southeastern part of the basin. The upper 8 m of two parallel cores were studied, using paleomagnetic, loss-on-ignition, pollen, and diatom analyses. Based on 11 14C ages, the analyzed record spans the last 19,000 14C yr B.P. Volcanic activity has affected microfossil abundances, both directly and indirectly, resulting in absence or reduction of pollen and diatom assemblages. Important volcanic activity took place between 19,000 and 15,000 yr B.P. when the lake was a shallow alkaline marsh and an increase of grassland pollen suggests a dry, cold climate. During this interval, abrupt environmental changes with increasing moisture occurred. From 15,000 until 12,500 yr B.P. the lake level increased and the pollen indicates wetter conditions. The highest lake level is registered from 12,500 to ca. 9000 yr B.P. Th...

Geofísica Internacional, 1999

Se presentan resultados iniciales de un proyecto de largo plazo relacionados con los cambios temp... more Se presentan resultados iniciales de un proyecto de largo plazo relacionados con los cambios temporales de las anomalías magnéticas sobre el Volcán de Colima. Este volcán se ha caracterizado por eventos eruptivos frecuentes en tiempos históricos. La actividad presente incluye el crecimiento de un domo de lava en la cima del cráter. Medidas del campo magnético total se tomaron en estaciones espaciadas cada 0.5 km a lo largo de una sección de 35 km que cubre el flanco este y parte de la cima entre Atenquique y El Playón, en un periodo que cubre del 27 de abril de 1995 al 16 de mayo de 1996. Se han reconocido 3 diferentes zonas con características magnéticas anómalas a lo largo de la sección. (1) La zona asociada a avalanchas de escombros del Nevado de Colima y depósitos volcano-conglomeráticos de la Formación Atenquique, entre las estaciones km 10 y 23, caracterizados por anomalías de amplitudes y frecuencias bajas sin cambios magnéticos temporales. (2) La zona de lavas y brechas ande...

Marine Geology, 2014

We present the first multibeam bathymetric maps of the Campeche Escarpment, a Mesozoic carbonate ... more We present the first multibeam bathymetric maps of the Campeche Escarpment, a Mesozoic carbonate platform in the Gulf of Mexico, which represents the closest Cretaceous-Paleogene (K-Pg) boundary outcrops to the Chicxulub impact structure. The impact of an extraterrestrial-body~65 million years ago on top of this platform is implicated in the end of the Cretaceous mass extinction and caused the largest debris flow yet described on Earth, which is found across the floor of the Gulf of Mexico and the Caribbean Sea. The location of the K-Pg boundary has been identified in the escarpment face by combining the new multibeam data with existing information from boreholes. The boundary is represented by an abrupt change in gradient on the escarpment face. The morphology of the escarpment combined with seismic data reveals that a significant amount of material is missing from the face, which failed catastrophically due to seismic shaking produced by the impact. The escarpment face is inferred to be an important source for the extensive debris flows triggered by the impact, whose deposits are found throughout much of the Gulf of Mexico.

Proceedings of the National Academy of Sciences, 2004

Since the early l990s the Chicxulub crater on Yucatan, Mexico, has been hailed as the smoking gun... more Since the early l990s the Chicxulub crater on Yucatan, Mexico, has been hailed as the smoking gun that proves the hypothesis that an asteroid killed the dinosaurs and caused the mass extinction of many other organisms at the Cretaceous-Tertiary (K-T) boundary 65 million years ago. Here, we report evidence from a previously uninvestigated core, Yaxcopoil-1, drilled within the Chicxulub crater, indicating that this impact predated the K-T boundary by ≈300,000 years and thus did not cause the end-Cretaceous mass extinction as commonly believed. The evidence supporting a pre-K-T age was obtained from Yaxcopoil-1 based on five independent proxies, each with characteristic signals across the K-T transition: sedimentology, biostratigraphy, magnetostratigraphy, stable isotopes, and iridium. These data are consistent with earlier evidence for a late Maastrichtian age of the microtektite deposits in northeastern Mexico.

Physics of the Earth and Planetary Interiors, 1996

volcano slope varies from 5°to a near-horizontal (approximately 1°) coastal terrace up to 3 km wi... more volcano slope varies from 5°to a near-horizontal (approximately 1°) coastal terrace up to 3 km wide. The Pohue Bay flow can be followed from the coastline up to an elevation of 920 m, and its vent area (higher still) is on the southwest rift zone (Fig.

Physics of the Earth and Planetary Interiors, 1977

... More recent geological work was done by Clark (1947, 1964a, b, 1970), Cooke (1952), Lespe ran... more ... More recent geological work was done by Clark (1947, 1964a, b, 1970), Cooke (1952), Lespe rance (1963) and Globensky (1969). ... of diorite and altered gabbro outcrop some 2,000 m to the east of the shoreline of the St.Lawrence River and 3 km WSW of St.Nicolas located to ...

Meteoritics & Planetary Science, 2004

The Chicxulub Scientific Drilling Project (CSDP), Mexico, produced a continuous core of material ... more The Chicxulub Scientific Drilling Project (CSDP), Mexico, produced a continuous core of material from depths of 404 to 1511 m in the Yaxcopoil-1 (Yax-1) borehole, revealing (top to bottom) Tertiary marine sediments, polymict breccias, an impact melt unit, and one or more blocks of Cretaceous target sediments that are crosscut with impact-generated dikes, in a region that lies between the peak ring and final crater rim. The impact melt and breccias in the Yax-1 borehole are 100 m thick, which is approximately 1/5 the thickness of breccias and melts exposed in the Yucatán-6 exploration hole, which is also thought to be located between the peak ring and final rim of the Chicxulub crater. The sequence and composition of impact melts and breccias are grossly similar to those in the Yucatán-6 hole. Compared to breccias in other impact craters, the Chicxulub breccias are incredibly rich in silicate melt fragments (up to 84% versus 30 to 50%, for example, in the Ries). The melt in the Yax-1 hole was produced largely from the silicate basement lithologies that lie beneath a 3 km-thick carbonate platform in the target area. Small amounts of immiscible molten carbonate were ejected with the silicate melt, and clastic carbonate often forms the matrix of the polymict breccias. The melt unit appears to have been deposited while molten but brecciated after solidification. The melt fragments in the polymict breccias appear to have solidified in flight, before deposition, and fractured during transport and deposition.

Materials Science and Engineering: B, 2000

We report an improved recipe for synthesizing high quality graphene through chemical vapor deposi... more We report an improved recipe for synthesizing high quality graphene through chemical vapor deposition (CVD), scanning electron microscopy (SEM) characterization of CVD graphene, and optimized SEM imaging conditions for efficient visualization of surface features in CVD graphene. We have developed an optimized graphene growth recipe by characterizing the quality of as-grown graphene using Raman spectroscopy and SEM. We have examined graphene samples both on copper (Cu) and silicon dioxide (SiO 2) substrate using SEM. We have found that features on the samples are highly sensitive to both SEM imaging conditions and the type of detector used. With low acceleration voltage (1 keV), immersion lenses, and through the lens detector, we have clearly observed fine features including wrinkles, folding lines, defects, and different layer numbers of graphene, many of which are not visible in un-optimized SEM images. Further, we demonstrate mechanical bulging of suspended CVD graphene membranes covering microtrenches by using electron beam to activate the trapped gas underneath. Our findings and techniques can lead to improved characterization, understanding, and manipulation of graphene and other two-dimensional materials.

Journal of Geophysics and Engineering, 2005

Seismic attenuation analysis is used to distinguish changes in the spectral and amplitude charact... more Seismic attenuation analysis is used to distinguish changes in the spectral and amplitude characteristics of the seismic signal with the purpose of identifying the presence of fluids and fractures within the rock system. The analysis of such changes can be used as a tool for characterizing rock properties and for understanding the behaviour of wave propagation in a complex environment comprised by pores and cracks containing fluids. The study is carried out using high-resolution reflection data obtained from a mature fractured carbonate reservoir near the northeast coast of Mexico. Production from this reservoir is declining considerably. For this reason, a horizontal drilling programme is being considered. The results obtained from in situ measurements indicate that spectral changes and attenuation anomalies are related to the presence of hydrocarbons in the fractured reservoir rocks; however, such anomalies are also related to wave scattering in highly fractured areas. The seismic attenuation patterns associated with the productive zones have helped to identify new potential areas and horizontal drilling targets.

Journal of Geophysical Research, 2005

We report a detailed paleomagnetic and rock magnetic study of 17 independent lava flows belonging... more We report a detailed paleomagnetic and rock magnetic study of 17 independent lava flows belonging to the Trans-Mexican Volcanic Belt; 175 oriented samples were collected in the Ceboruco-San Pedro volcanic field. These sites were previously dated by means of a state-of-the-art 40 Ar-39 Ar geochronological method and span from 819 to 2 ka. Rock magnetic experiments, which included continuous susceptibility and hysteresis measurements, point to simple magnetic mineralogy. In most cases, the remanence is carried by Ti-poor titanomagnetite of pseudosingle-domain magnetic structure. Fourteen flows give normal magnetic polarities, while two are reversely magnetized; only one cooling unit yields intermediate paleodirections. The paleodirections of the flow dated at 819 ± 25 ka correspond to a VGP latitude of 18°N. This anomalous field behavior apparently recorded prior to the Matuyama-Brunhes (M-B) reversal may coincide with the transitionally magnetized lavas on La Palma, Canary Islands (40 Ar-39 Ar age of 822.2 ± 8.7 ka), and with an event featured in several marine sediment records. Thus this geomagnetic event, defined as M-B precursor, is probably global in extent. Two independent lava flows, dated at 623 ± 91 and 614 ± 16 ka, yield reverse paleodirections. Age uncertainties make it difficult to claim the discovery of a new geomagnetic event. It is possible that these lavas erupted during the worldwide observable Big Lost event (40 Ar-39 Ar age of 580.2 ± 7.8 ka), which has probably been longer and more complex than it is generally believed for geomagnetic excursions.

Chicxulub Crater, formed ~66Ma ago by an asteroid impact on the southern Gulf of Mexico, is the b... more Chicxulub Crater, formed ~66Ma ago by an asteroid impact on the southern Gulf of Mexico, is the best preserved of the three large multi-ring basins in the terrestrial record. The crater structure is characterized by a semi-circular concentric ring pattern, marking the crater basin, peak ring, terrace zone and basement uplift. Analysis of a grid of 19 seismic reflection profiles using seismic attributes, marker horizons, contour surfaces and 3-D views is used to investigate the stratigraphy of the central zone. We used interactive software and routine applications to map the impact breccias, breccia-carbonate contact and post-impact carbonates. Four horizons marked by high-amplitude reflectors representing high-impedance contrasts were identified and laterally correlated in the seismic images. Complex trace attribute analysis was applied for petrophysical characterization. Surface contour maps of base and top of stratigraphic packages were constructed, which mapped the impactites and post-and pre-impact carbonate stratigraphy. Basin floor, marked by the contact between the impact breccias and overlying carbonates is shown by laterally discontinuous high-amplitude reflectors. Discontinuous scattered reflectors interpreted as the upper breccias beneath the crater floor, have an average thickness of ~300msm. The Paleogene sedimentary units are characterized by multiple reflectors with lateral continuity, which contrast with the seismic response of underlying breccias. The basal Paleocene sediments follow the basin floor relief. Upwards in the section, the carbonate strata are characterized by horizontal reflectors, which are interrupted by a regional unconformity. Onlap/downlap packages over the unconformity record a period of sea level change.