Depositional history of the Celebes Sea from ODP Sites 767 and 770

Online Access: Get full text
doi: 10.1029/GL017i011p02061
Author(s): Smith, Randall B.; Betzler, Christian; Brass, Garrett W.; Huang, Zehui; Linsley, Braddock K.; Merrill, Dean L.; Müller, Carla M.; Nederbragt, Alexandra J.; Nichols, Gary J.; Pubellier, Manuel; Sajona, Fernando G.; Scherer, Reed P.; Shibuya, Hidetoshi; Shyu, Jih-Ping; Solidum, Renato U.; Spadea, Piera
Author Affiliation(s): Primary:
Calif. State Univ., Dep. Geol., Fresno, CA, United States
Other:
Univ. Pierre et Marie Curie, France
Geol. Inst., Federal Republic of Germany
Univ. Miami, United States
Dalhousie Univ., Canada
Univ. N.M., United States
Tex. A&M Univ., United States
Univ. Frankfurt, Federal Republic of Germany
Vrije Univ., Netherlands
Univ. London, United Kingdom
Ohio State Univ., United States
Univ. Osaka, Japan
Philipp. Inst. Volcanol. and Seismol., Philippines
Univ. Udine, Italy
Volume Title: Leg 124 of the Ocean Drilling Program
Volume Author(s): Silver, Eli A.; Rangin, Claude
Source: Leg 124 of the Ocean Drilling Program, Eli A. Silver and Claude Rangin. Geophysical Research Letters, 17(11), p.2061-2064. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0094-8276 CODEN: GPRLAJ
Note: In English. 8 refs.; illus.
Summary: Leg 124 of the Ocean Drilling Project drilled Sites 767 and 770 in the northern Celebes Sea, reaching late middle Eocene basaltic basement at both sites. Major shifts in sediment provenance record the changing tectonic setting of the basin. From late middle Eocene into early Miocene time pelagic sedimentation prevailed, with little influence from continental or volcanic arc sources. A major continental influence is first documented in middle Miocene time as a thick sequence of quartzose, mud-rich turbidites accumulated on the deeper basin floor, possibly in response to middle Miocene orogeny in northern Borneo. Terrigenous turbidite deposition waned during the late Miocene as active arc volcanism began to contribute significant amounts of hemipelagic sediment and ash layers, which have remained the dominant basinal sediment to the present. Although the Celebes Sea is now nearly surrounded by volcanic arc terranes, the absence of volcaniclastic sediment in the Eocene to early Miocene section suggests that the basin did not form by back-arc spreading. Abstract Copyright Copyright 1990 by the American Geophysical Union.
Year of Publication: 1990
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Algae; Biostratigraphy; Biozones; Celebes Sea; Cenozoic; Cores; Deposition; Eocene; Hemipelagic environment; Holocene; Ichnofossils; Indonesian Seas; Interpretation; Invertebrata; Leg 124; Lower Miocene; Marine environment; Microfossils; Middle Eocene; Miocene; Nannofossils; Neogene; North Pacific; Northwest Pacific; ODP Site 767; ODP Site 770; Ocean Drilling Program; Pacific Ocean; Paleogene; Pelagic environment; Plantae; Protista; Quaternary; Radiolaria; Sedimentation; Sedimentation rates; Stratigraphy; Structural controls; Tertiary; Thallophytes; Turbidite; Upper Miocene; Volcanism; Volcanology; West Pacific
Coordinates: N044727 N044731 E1233014 E1233011
N050840 N050843 E1234015 E1234005
Record ID: 1990064959
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom