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Authors: Paulsen, T.*
Millan, C.*
Pierdominici, S.*
Wilson, T.*
Drew, S.*
ANDRIL-SMS Science Team, *
Title: Fracture Logging of the AND-2A Core, ANDRILL Southern McMurdo Sound Project, Antarctica
Title of journal: Terra Antartica
Series/Report no.: 1/15 (2009)
Issue Date: 2009
Keywords: Fractures
Downhole logging
Abstract: Fractures in AND-2A drillcore were documented in this study. Over 4100 fractures of all types were logged. A population of 510 steeply-dipping, petal, petal-centreline and core-edge induced fractures is present, reaching a maximum density of c. 10 fractures/metre. Subhorizontal induced extension fractures are also abundant. There are 1008 natural fractures in the core, including faults, brecciated zones, veins and sedimentary intrusions. Kinematic indicators document dominant normal faulting, although reverse faults are also present. The natural fractures occur in strata ranging in age from the Miocene to the Plio-Pleistocene.
Appears in Collections:04.07.99. General or miscellaneous
04.04.09. Structural geology
04.07.05. Stress
04.02.05. Downhole, radioactivity, remote sensing, and other methods
04.07.07. Tectonics
Papers Published / Papers in press

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