Provenance of Miocene–Pleistocene Turbidite Sands and Sandstones, Nankai Trough, Ocean Drilling Program Leg 190

Sands, Turbidite; Trough, Nankai; Drilling, Ocean; Leg, Program; Fergusson, C. L.

doi:10.2973/odp.proc.sr.190196.205.2003

Cited by 25 publications

(41 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We suggest that the most likely terrigenous sources for this sandy detritus were rock units now exposed across the Outer Zone of southwest Japan, including the Shimanto Belt (Taira et al, 1989;Nakajima, 1997). Superficially similar sand deposits, with overlapping ages, have been documented on the southwest side of the Shikoku Basin at ODP Site 1177 and DSDP Site 297 offshore the Ashizuri Peninsula of Shikoku (Marsaglia et al, 1992;Fergusson, 2003;Underwood and Fergusson, 2005).…”

Section: Principal Results From Site C0011mentioning

confidence: 99%

IODP Expedition 322 Drills Two Sites to Document Inputs to The Nankai Trough Subduction Zone

Underwood

Saito

Kubo

2010

Scientific Drilling

View full text Add to dashboard Cite

The primary goals during Expedition 322 of the Integrated Ocean Drilling Program were to sample and log the incoming sedimentary strata and uppermost igneous basement of the Shikoku Basin, seaward of the Nankai Trough (southwestern Japan). Characterization of these subduction inputs is one piece of the overall science plan for the Nankai Trough Seismogenic Zone Experiment. Before we can assess how various material properties evolve down the dip of the plate interface, and potentially change the fault's behavior from stable sliding to seismogenic slip, we must determine the initial pre-subduction conditions. Two sites were drilled seaward of the trench to demonstrate how facies character and sedimentation rates responded to bathymetric architecture. Site C0011 is located on the northwest flank of a prominent basement high (Kashinosaki Knoll), and Site C0012 is located near the crest of the seamount. Even though significant gaps remain in the coring record, and attempts to recover wireline logs at Site C0012 failed, correlations can be made between stratigraphic units at the two sites. Sedimentation rates slowed down throughout the condensed section above the basement high, but the seafloor relief was never high enough during the basin's evolution to prevent the accumulation of sandy turbidites near the crest of the seamount. We discovered a new stratigraphic unit, the middle Shikoku Basin facies, which is typified by late Miocene volcaniclastic turbidites. The sediment-basalt contact was recovered intact at Site C0012, giving a minimum basement age of 18.9 Ma. Samples of interstitial water show a familiar freshening trend with depth at Site C0011, but chlorinity values at Site C0012 increase above the values for seawater toward the basement contact. The geochemical trends at Site C0012 are probably a response to hydration reactions in the volcaniclastic sediment and diffusional Science Reports

show abstract

Section: Principal Results From Site C0011mentioning

confidence: 99%

IODP Expedition 322 Drills Two Sites to Document Inputs to The Nankai Trough Subduction Zone

Underwood

Saito

Kubo

2010

Scientific Drilling

View full text Add to dashboard Cite

show abstract

“…A total of 500 grains were counted using a Swift automatic point-counter in order to achieve "maximum grid spacing to cover the entire slide" (Ingersoll et al, 1984). A total of 22 grain categories were chosen based on categorizations established in previous studies Fergusson, 2003). These categories include monocrystalline quartz and feldspars, volcanic lithic grains, metamorphic lithic grains, sedimentary lithic grains, and accessory grains including biogenic grains, micas, and heavy minerals (Table T1).…”

Section: Methodsmentioning

confidence: 99%

“…Data from are average values. Data from Fergusson (2003) Figure F4. Monocrystalline quartz (Qm)-Ca-plagioclase (P)-K-feldspar (K) triangles.…”

Section: C0008mentioning

confidence: 99%

See 1 more Smart Citation

Data report: modal sand composition at Sites C0004, C0006, C0007, and C0008, IODP Expedition 316, Nankai accretionary prism

Milliken¹,

Comer²,

Marsaglia³

2012

Proceedings of the IODP

View full text Add to dashboard Cite

Sand samples collected from cores recovered at Sites C0004, C0006, C0007, and C0008, Integrated Ocean Drilling Program Expedition 316, are dominantly feldspathic litharenites containing between 18% and 40% detrital quartz within the total quartz, feldspar, lithic (QtFL) fraction. The lithic component includes a mix of volcanic, sedimentary, metamorphic, and plutonic fragments. The feldspar component is dominated by Ca-plagioclase. A grain-size control on modal composition is apparent, notably a greater concentration of feldspar grains in the finer samples. No significant stratigraphic or geographic trends in modal grain composition are observed within this sample set.

show abstract

“…The composite section also captured a previously unrecognized interval of late Miocene volcaniclastic sandstone. An older (early-middle Miocene) turbidite sandstone/siltstone facies with mixed volcaniclastic-siliciclastic detrital provenance occurs in the lower Shikoku Basin facies; this unit may be broadly correlative with superficially similar Miocene turbidites on the western side of the basin (Fergusson, 2003;Underwood, 2007;Underwood et al, 2010). The age of basal sediment (reddish-brown pelagic claystone) at Site C0012 is older than 18.9 Ma.…”

Section: Geologic Setting and Previous Workmentioning

confidence: 99%

Scientific Drilling

Henry

Kanamatsu

Moe

et al. 2012

Scientific Drilling

View full text Add to dashboard Cite

Provenance of Miocene–Pleistocene Turbidite Sands and Sandstones, Nankai Trough, Ocean Drilling Program Leg 190

Cited by 25 publications

References 27 publications

IODP Expedition 322 Drills Two Sites to Document Inputs to The Nankai Trough Subduction Zone

IODP Expedition 322 Drills Two Sites to Document Inputs to The Nankai Trough Subduction Zone

Data report: modal sand composition at Sites C0004, C0006, C0007, and C0008, IODP Expedition 316, Nankai accretionary prism

Scientific Drilling

Contact Info

Product

Resources

About