Limestone of the Daiichi Kashima Seamount and the fate of a subducting guyot: fact and speculation from the Kaiko “Nautile” dives

Konishi, Kenji

doi:10.1016/0040-1951(89)90394-6

Cited by 24 publications

(18 citation statements)

References 10 publications

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“…Dredges from Daiichi Kashima Seamount recovered benthic foraminifers dated as Early to middle Cretaceous (Research Group for Daiichi Kashima Seamount, 1976;Shiba, 1988;Konishi, 1989). Specimens attributed to Orbitolina lenticularis (Blumenbach) by Shiba (1988) probably are Conicorbitolina sp., and the forms referred to Cuneolina laurentii are probably Cuneolina parva.…”

Section: Previous Record From the Pacific Ocean Basinmentioning

confidence: 99%

Early Cretaceous Shallow-Water Benthic Foraminifers and Fecal Pellets from Leg 143 Compared with Coeval Faunas from the Pacific Basin, Central America, and the Tethys

Arnaud‐Vanneau¹,

Sliter²

1995

Proceedings of the Ocean Drilling Program, 143 Scientific Results

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Early Cretaceous shallow-water benthic foraminifers and fecal pellets were recovered from Allison and Resolution guyots in the western Mid-Pacific Mountains (MPM) during Ocean Drilling Program Leg 143. These faunas are used to date the carbonate platform owing to the near absence of other microfossils. Four sites contained the Early Cretaceous assemblages: Site 865 on Allison Guyot, and Sites 866, 867, and 868, which were drilled as part of a transect across the perimeter of Resolution Guyot.Of these sites, Site 866, located about 1.5 km inward from the perimeter mound on Resolution Guyot, provided the most complete record of carbonate sedimentation because drilling penetrated about 1600 m of Hauteri vian to late Albian shallow-water carbonate rocks capped by a thin veneer of Maastrichtian to Pliocene pelagic sediments before encountering basalt. The Hauterivian age of the basal limestone pre-dates the clastic limestone of Barremian age from Deep Sea Drilling Project Site 463 in the MPM and thus represents the oldest shallow-water carbonate rocks yet recovered from the Pacific Basin.Forty-four species of benthic foraminifers, including the new species Nezzazata isabellae and Vercorsella wintered, and three species of fecal pellets are grouped into five biostratigraphically significant assemblages: Assemblage I = late Albian, Assemblage II = middle(?) to late Albian(?). Assemblage III = late Aptian(?) to early Albian(?), Assemblage IV = Barremian to early Aptian, and Assemblage V = Hauterivian. This biostratigraphic succession served as the standard for dating and comparing the Aptian(?)-to-Albian sequence at Site 865 and the Albian sediments at Sites 867/868, as well as the Aptian-to-Albian shallow-water sequences drilled during Leg 144.Although sparse, the Hauterivian to Aptian assemblages represent a mixture of species known from the northern and southern margins of the Tethys. Further, the stratigraphic succession of the Pacific species is the same as that in Tethyan sequences. Late Aptian to Albian assemblages are distinguished by an influx of species from Mexico and Venezuela associated with a Tethyan fauna.Based on the benthic faunas, three major paleoenvironments corresponding to the development of the platform are recognized at Site 866: (1) sandy, normal-marine conditions in the Hauterivian, (2) restricted lagoonal conditions with stromatolites during the Barremian to early Aptian, and (3) muddy facies with sponges and normal-marine lagoonal conditions during the late Aptian and Albian.

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Section: Previous Record From the Pacific Ocean Basinmentioning

confidence: 99%

Early Cretaceous Shallow-Water Benthic Foraminifers and Fecal Pellets from Leg 143 Compared with Coeval Faunas from the Pacific Basin, Central America, and the Tethys

Arnaud‐Vanneau¹,

Sliter²

1995

Proceedings of the Ocean Drilling Program, 143 Scientific Results

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“…Its disrupted nature we attribute to accretion after break-up caused by extensional faulting as the plate passed over the flexural bulge of the associated trench. A modern analogue is perhaps the accretion of the Kashima seamount in the Japan Trench (Konishi, 1989;Taira et al, 1989). Sedimentary me´lange units may have initiated as the seamount broke up along normal faults and slumped into the thickening cherts and distal turbidites.…”

Section: Discussionmentioning

confidence: 97%

The South Connemara Group reinterpreted: a subduction-accretion complex in the Caledonides of Galway Bay, western Ireland

Ryan

Dewey²

2004

Journal of Geodynamics

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“…The collapse of seamounts produces a large amount of various sized blocks of limestone and basaltic rocks, which were dispersed on the ocean Xoor (Kobayashi et al 1987;Konishi 1989;Lallemand et al 1989). Note that giant landslides of the Erimo seamount occurred prior to the seamount's encounter with coarse terrigenous sediments, in an open-ocean setting ("Erimo"-stage: Konishi 1989). The Erimo seamount was formed mostly under an extensional stress caused by the lithospheric bending (Kobayashi et al 1998).…”

Section: Middle To Late Jurassic Bank Collapsementioning

confidence: 96%

“…Normal fault zones usually extend 50-75 km seaward of a trench (Masson 1991;Kobayashi et al 1998;Tsuru et al 2000). The collapse of seamounts produces a large amount of various sized blocks of limestone and basaltic rocks, which were dispersed on the ocean Xoor (Kobayashi et al 1987;Konishi 1989;Lallemand et al 1989). Note that giant landslides of the Erimo seamount occurred prior to the seamount's encounter with coarse terrigenous sediments, in an open-ocean setting ("Erimo"-stage: Konishi 1989).…”

Section: Middle To Late Jurassic Bank Collapsementioning

confidence: 97%

Sedimentary facies from Upper Triassic reefal limestone of the Sambosan accretionary complex in Japan: mid-ocean patch reef development in the Panthalassa Ocean

Onoue

Stanley

2008

Facies

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Microfacies of the Early to Middle Norian reefal limestone of the Sambosan Accretionary Complex (SAC) at Kamase locality, southwest Japan, are classiWed into seven major facies types in stratigraphic order: peloidal grainstone-packstone, unfossiliferous lime-mudstone, tubular problematica-rich wackestone, sponge-coral Xoatstone, sponge baZestone, coral rudstone, and peloidal-bioclastic packstone-grainstone. The SAC records patch reef development on a mid-oceanic seamount in the Panthalassa Ocean.Because most examples of Triassic reefs come from the former Tethys, counterparts such as those from the SAC are pivotal in resolving paleogeographic issues as well as clarifying the depositional patterns between the eastern Tethys and adjacent western PaciWc (Panthalassa). We also reveal that the primary stratigraphy of the reefal limestone was disrupted by submarine landslides of the seamount in an openocean realm during the late Middle to Late Jurassic time.

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Limestone of the Daiichi Kashima Seamount and the fate of a subducting guyot: fact and speculation from the Kaiko “Nautile” dives

Cited by 24 publications

References 10 publications

Early Cretaceous Shallow-Water Benthic Foraminifers and Fecal Pellets from Leg 143 Compared with Coeval Faunas from the Pacific Basin, Central America, and the Tethys

Early Cretaceous Shallow-Water Benthic Foraminifers and Fecal Pellets from Leg 143 Compared with Coeval Faunas from the Pacific Basin, Central America, and the Tethys

The South Connemara Group reinterpreted: a subduction-accretion complex in the Caledonides of Galway Bay, western Ireland

Sedimentary facies from Upper Triassic reefal limestone of the Sambosan accretionary complex in Japan: mid-ocean patch reef development in the Panthalassa Ocean

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