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Extensional Systems

Explorer Article

Spreading the word: Nine speakers have been selected for AAPG’s prestigious Distinguished Lecture program for the 2012-13 North American tours.

American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

It was nearly midnight on a Saturday late in June 1971 when BOCAL’s new palynologist Barry Ingram telephoned chief geologist Peter Kaye to tell him the gas discovery in North Rankin-1 were in Triassic sediments.

American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

The history of oil in the Middle East is essentially a story of giant oil fields (each containing over 500 million barrels).

American Association of Petroleum Geologists (AAPG)
Explorer Article

The Rovuma Basin off the coast of Mozambique is not on the radar screen of a whole lot of folks.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Time after time: Advanced geophysical techniques have been used for identifying fractures in Saudi Arabia. The rest of the story, however, was getting the story …

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

If the university-sponsored geologic field camp is to survive and prosper, some believe it will only do with an infusion of international geoscience students.

American Association of Petroleum Geologists (AAPG)
Explorer Article

WEB EXCLUSIVE: A comprehensive look at the use of cutting-edge technology in Egypt’s Western Desert – including the application of new seismic, drilling and stimulation operations – helped make AAPG’s first international Geoscience Technical Workshop a big success.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

In this month's Geophysical Corner the authors illustrate the use of a technique known as corendering to assist fault interpretations in a structurally complex area.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Success stories may abound, but a lot of innovative thought already has been required for the complex Woodford Shale play in Oklahoma’s Arkoma Basin.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Out of Africa: Uganda’s Albert Basin as well as other plays in the East Africa rift valley provides a demanding setting for frontier exploration.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 21 August 2014, 2:00 p.m.–3:00 p.m.

The goal of this e-symposium is to review the status of the Mexican upstream sector, and to provide a review of the most prolific and prospective areas in Mexico, with a focus on opportunities for international participation, given the upcoming energy reform in Mexico.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 25 August 2011, 12:00 a.m.–12:00 a.m.

This e-symposium provides highlights of the hydraulic fracturing mechanics, analysis, and design, and is derived from a two and one-half (2-1/2) day course which is designed for drilling, completion, production engineers, engineering technicians, geologists, well-site and completion supervisors, and managers, who desire to possess a comprehensive and integral knowledge of Hydraulic Fracturing.

American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Thursday, 2 July 2020, 4:00 p.m.–5:00 p.m.

Presented by Kevin C. Hill, Associate Professor, University of Melbourne Gravity modelling of Australia's southern margin reveals that the initial rift with Antarctica was beneath the current Ceduna Delta. A regional, high-quality seismic traverse from the coast to oceanic crust across the Bight Basin has been assembled and interpreted in detail, then balanced, restored, decompacted, and replaced at paleo-water depths. The Late Cretaceous Ceduna Delta developed above a Late Jurassic-Early Cretaceous rift basin in three stages punctuated by significant pulses of uplift and erosion across areas >100 km wide and with up to 1 km of erosion. The Cenomanian White Pointer delta prograded into deepening water and hence underwent gravitational collapse. This was terminated in the Santonian when the Antarctic margin was pulled out from below, thus supplying heat to a remnant thicker outer margin crust, causing doming and erosion. Importantly, this established the saucer-shaped geometry of the Ceduna Delta that persisted throughout its development, so that any hydrocarbons generated in the southern half of the basin would have migrated towards this outer margin high. The Tiger Formation was deposited in shallow water in a full rift basin prior to breakup, which was followed by regional thermal subsidence. The Hammerhead delta developed on the newly formed passive margin but was terminated by another pulse of uplift and erosion, perhaps associated with a change in plate motion at the end of the Cretaceous. The finite element modelling of this proposed tectonic evolution will test its validity and predict hydrocarbon generation and migration through time.

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American Association of Petroleum Geologists (AAPG)
VG Abstract

The Betic hinterland, in the westernmost Mediterranean, constitutes a unique example of a stack of metamorphic units. Using a three-dimensional model for the crustal structure of the Betics-Rif area this talk will address the role of crustal flow simultaneously to upper-crustal low-angle faulting in the origin and evolution of the topography.

Request a visit from Juan I. Soto!

American Association of Petroleum Geologists (AAPG)
VG Abstract

In comparison with the known boundary conditions that promote salt deformation and flow in sedimentary basins, the processes involved with the mobilization of clay-rich detrital sediments are far less well established. This talk will use seismic examples in different tectonic settings to document the variety of shale geometries that can be formed under brittle and ductile deformations.

Request a visit from Juan I. Soto!

American Association of Petroleum Geologists (AAPG)

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