Leg 84 of the Deep Sea Drilling Project

Aubouin, Jean; Huene, Roland von; Baltuck, Miriam; Arnott, Robert; Bourgois, Jacques; Filewicz, Mark V.; Kvenvolden, Keith A.; Leinert, Barry; McDonald, Tom; McDougall, Kristin; Ogawa, Yujiro; Taylor, Elliot; Winsborough, Barbara

doi:10.1038/297458a0

Cited by 53 publications

(4 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Using values obtained by Davis et al [1983] for Taiwan (m b = 0.85, m = 1.03) and the geometry of the wedges as determined by other workers and listed above include: Himalaya l = 0.76, Java Trench south of Bali l = 0.7, Makran wedge in the Gulf of Oman l = 0.98, Peru Trench l = 0.6, Guatemala l = 0.7, Oregon l = 0.9, and eastern Aleutians in the Gulf of Alaska l = 0.88. Their calculated pore fluid pressures are in agreement with the observed values for wedges where observations are available: Makran l = ∼1 (as noted by Davis et al [1983]), Guatemala l = "high" [Aubouin et al, 1982], Oregon l = 0.85 [Moore and von Huene, 1980], and Aleutians l = ∼0.87 [Hottman et al, 1979]. Generally, the predicted pore fluid pressure ratios are well in excess of hydrostatic (l^0.33) and terrestrial critical taper wedges require m = 1.03, m b = 0.85, and l = 0.68-0.98 [Davis et al, 1983].…”

Section: Approach: Critical Taper Wedge Mechanicssupporting

confidence: 84%

Evaluation of the orogenic belt hypothesis for the formation of the Thaumasia Highlands, Mars

Nahm

Schultz

2010

J. Geophys. Res.

View full text Add to dashboard Cite

[1] Thrust faults along the southern margin of the Thaumasia Highlands, Mars, comprise a set of discrete subparallel south verging structures. Previous work proposed that the faults collectively define a narrow Earth-like orogenic belt composed of a deformed lithospheric section translating southward through Tharsis above a regional décollement. This hypothesis is tested here by comparing topographic slopes across the Thaumasia Highlands to the values required by thrust faulting in a critical taper wedge setting. In general, topographic slopes across the Thaumasia Highlands, 0.418-1.017°, are too shallow for the Martian lithosphere to have deformed as a critical taper wedge, assuming reasonable values for pore fluid pressure ratios and frictional strengths of the wedge material and putative décollement. Combined with the absence of a mechanism to provide the necessary values of horizontal shortening (hundreds of km), nearly lithostatic pore fluid pressure ratios, and nearly frictionless décollements over regional scales on Mars that would be necessary for lithospheric translation as a wedge, the results are consistent with thrust fault deformation across Mars that is not integrated at depth into subhorizontal structures, but which function instead as discrete structures.

show abstract

Section: Approach: Critical Taper Wedge Mechanicssupporting

confidence: 84%

Evaluation of the orogenic belt hypothesis for the formation of the Thaumasia Highlands, Mars

Nahm

Schultz

2010

J. Geophys. Res.

View full text Add to dashboard Cite

show abstract

“…Parmi les résultats du « retour à la mer », on retiendra : (i) La distinction de différents types de marges actives. L'un des résultats majeurs, qui revient en grande partie à Aubouin, est la mise en évidence de marges actives convergentes en extension sans véritable prisme d'accrétion (Figure 6), en Amérique centrale [Aubouin et al, 1979[Aubouin et al, , 1981[Aubouin et al, , 1982[Aubouin et al, , 1984.…”

Section: Aperçu Sur Le Bilan Scientifique Lié Au « Retour à La Mer »unclassified

Jean Aubouin et les chaînes de montagnes : des observations aux synthèses. L’itinéraire scientifique d’un géologue au rayonnement international

Ferrière¹,

Faure²

2024

Comptes Rendus. Géoscience

View full text Add to dashboard Cite

L'itinéraire scientifique de Jean Aubouin s'inscrit sur plusieurs décennies depuis 1950. Différentes périodes s'individualisent, mais la cohérence de la démarche concernant la connaissance des chaînes de montagnes et des processus orogéniques apparaît nettement. Après une période de recherche des grandes règles d'organisation des orogènes, l'émergence de la théorie de la Tectonique des Plaques a conduit Jean Aubouin à se tourner vers les océans. Le retour vers la lithosphère continentale s'est réalisé en partie par l'intermédiaire de ses élèves. Ses nombreuses responsabilités, son élection à l'Académie des Sciences, puis sa présidence, n'ont pas entamé sa volonté de poursuivre ses recherches sur l'orogenèse.

show abstract

“…The regional framework of the Central America Trench off Costa Rica is well known from investigations since DSDP drilling in the early 1980s (Aubouin et al, 1982) and later, Legs 170 and 205 (Kimura, Silver, Blum, et al, 1997;Morris, Villinger, Klaus, et al, 2003). Recently, this margin has been the focus of two major scientific projects: the German Collaborative Research Center (SFB) 574 "Volatiles and fluids in subduction zones" (sfb574.ifm-geomar.de/home/) and the US MARGINS National Science Foundation program (www.nsf-margins.org/SEIZE/CR-N/CostaRica.html).…”

Section: Site Survey Datamentioning

confidence: 99%

Untitled

2012

IODP Scientific Prospectus

View full text Add to dashboard Cite

show abstract

Leg 84 of the Deep Sea Drilling Project

Cited by 53 publications

References 6 publications

Evaluation of the orogenic belt hypothesis for the formation of the Thaumasia Highlands, Mars

Evaluation of the orogenic belt hypothesis for the formation of the Thaumasia Highlands, Mars

Jean Aubouin et les chaînes de montagnes : des observations aux synthèses. L’itinéraire scientifique d’un géologue au rayonnement international

Untitled

Contact Info

Product

Resources

About