Active slivering of oceanic crust along the Molucca ridge (Indonesia-Philippine): Implication for ophiolite incorporation in a subduction wedge?
Article Abstract:
The narrow basin of the Molucca Sea is located south of Mindanao (Philippines). Geological and gravity data was compared with bathymetry, seismic and ocean bottom seismometer (OBS) data from the northern part of the ridge, to resolve the issue of the origin of the broken Molucca Sea crust versus outer ridge of the Sangihe subduction zone, or ultramafic ridge. It is concluded that the central structure of the Molucca Sea highlights several stages of oceanic crust deformation. The Molucca Sea subduction under the Sangihe arc was first perturbated after the rupture of the Molucca Sea lithosphere.
Publication Name: Tectonics
Subject: Earth sciences
ISSN: 0278-7407
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
The onset of movement on the Philippine fault in eastern Mindanao: a transition from a collision to a strike-slip environment
Article Abstract:
Narrow Philippine Fault deformation in southeast Mindanao was differentiated from collision-related structures. East-west transects taken from south to north revealed the structural evolution of eastern Mindanao to a pure strike slip environment from a zone of active collision. The Philippine Fault was also found to reactivate pre-existing collisional features in traversing the southern Pacific Cordillera.
Publication Name: Tectonics
Subject: Earth sciences
ISSN: 0278-7407
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Plate boundary readjustment in oblique convergence: Example of the Neogene of Hispaniola, Greater Antilles
Article Abstract:
The Haitian fold and thrust belt in wester Hispaniola, Greater Antilles, is examined.
Publication Name: Tectonics
Subject: Earth sciences
ISSN: 0278-7407
Year: 2000
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Active continental rifting in southern Baja California, Mexico: implications for plate motion partitioning and the transition to seafloor spreading in the Gulf of California
- Abstracts: An experimental study of glaucophanic amphiboles in the system Na2O-MgO-Al2O3-SiO2-SiF4 (NMASF): some implications for glaucophane stability in natural and synthetic systems at high temperatures and pressures
- Abstracts: Quaternary minettes and associated volcanic rocks of Mascota, western Mexico: a consequence of plate extension above a subduction modified mantle wedge
- Abstracts: Regional tilt of the Mount Stuart batholith, Washington, determined using aluminum-in-hornblende barometry: implications for northward translation of Baja British Columbia: discussion and reply
- Abstracts: Stresses in an overthrust sheet and propagation of thrusting: an airy stressfunction solution. Synchronous and velocity-partitioned thrusting and thrust polarity reversal in experimentally produced, doubly-vergent thrust wedges: implications for natural orogens