Fracturing, alteration, and permeability

in-situ properties in Hole 735B

D. Goldberg, C. Broglia, Keir Becker

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Citations (Scopus)

Abstract

Geophysical logs recorded over 500m in Hole 735B have been analyzed to identify the in-situ properties and the fracture permeability of basement rocks in the Atlantis II Fracture Zone. Although hydroxyl-bearing alteration minerals were found to be most abundant in the upper section of this hole, the highest permeabilities were also measured in this zone by packer tests. This interval corresponds to the presence of several open fractures imaged by the acoustic televiewer and to indications of fluid flow through transmissive fractures in the log responses. These fractures probably formed as a result of normal faulting on the transform side of the uplifted ridge, where Hole 735B was sited in the Atlantis II Fracture Zone, rather than as a direct result of horizontal plate-tectonic motion. -from Authors

Original languageEnglish (US)
Title of host publicationProc., scientific results, ODP, Leg 118, fracture zone drilling on the Southwest Indian Ridge
EditorsR.P. Von Herzen, P.T. Robinson
PublisherODP, Texas A&M University, College Station
Pages261-269
Number of pages9
StatePublished - 1991
Externally publishedYes

Fingerprint

permeability
fracture zone
mineral alteration
basement rock
plate tectonics
fluid flow
faulting
transform
acoustics
in situ
test

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Goldberg, D., Broglia, C., & Becker, K. (1991). Fracturing, alteration, and permeability: in-situ properties in Hole 735B. In R. P. Von Herzen, & P. T. Robinson (Eds.), Proc., scientific results, ODP, Leg 118, fracture zone drilling on the Southwest Indian Ridge (pp. 261-269). ODP, Texas A&M University, College Station.

Fracturing, alteration, and permeability : in-situ properties in Hole 735B. / Goldberg, D.; Broglia, C.; Becker, Keir.

Proc., scientific results, ODP, Leg 118, fracture zone drilling on the Southwest Indian Ridge. ed. / R.P. Von Herzen; P.T. Robinson. ODP, Texas A&M University, College Station, 1991. p. 261-269.

Research output: Chapter in Book/Report/Conference proceedingChapter

Goldberg, D, Broglia, C & Becker, K 1991, Fracturing, alteration, and permeability: in-situ properties in Hole 735B. in RP Von Herzen & PT Robinson (eds), Proc., scientific results, ODP, Leg 118, fracture zone drilling on the Southwest Indian Ridge. ODP, Texas A&M University, College Station, pp. 261-269.
Goldberg D, Broglia C, Becker K. Fracturing, alteration, and permeability: in-situ properties in Hole 735B. In Von Herzen RP, Robinson PT, editors, Proc., scientific results, ODP, Leg 118, fracture zone drilling on the Southwest Indian Ridge. ODP, Texas A&M University, College Station. 1991. p. 261-269
Goldberg, D. ; Broglia, C. ; Becker, Keir. / Fracturing, alteration, and permeability : in-situ properties in Hole 735B. Proc., scientific results, ODP, Leg 118, fracture zone drilling on the Southwest Indian Ridge. editor / R.P. Von Herzen ; P.T. Robinson. ODP, Texas A&M University, College Station, 1991. pp. 261-269
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