Larger Foraminifera from deep drill holes on Midway atoll

Cole, Wayne S.

doi:10.3133/pp680c

Cited by 14 publications

(17 citation statements)

References 3 publications

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“…orbitoideus Douvillé, 1905;. We agree with Cole (1969) in considering that the name 'margaritatus' should be used as prioritary respect to 'orbitoideus'.…”

Section: Genus Heterostegina D'orbigny 1826mentioning

confidence: 57%

“…blanckenhorni is used uniformly, whereas in the West Pacific several names were erected, based mainly on minor differences in external features. According to Cole (1969, see also for detailed discussion), all these forms are synonymous and should be described as Sp. margaritatus Schlumberger (1902), by applying the principle of priority.…”

Section: Genus Heterostegina D'orbigny 1826mentioning

confidence: 99%

“…They can be distinguished typologically quite easily by four different characteristics: (1) externally, Eulepidina is significantly larger and looks thinner than then has been used in all the subsequent papers on the stratigraphy of Kutch and other sedimentary basins of India. In accepting Cole's (1969) concept to unify all W Pacific Spiroclypeus from the latest Oligocene (and earliest Miocene) under the umbrella of Sp. margaritatus, the Kutch forms should be included here as well (based on both the Tewari, 1956, and our material).…”

Section: Family Lepidocyclinidae Scheffen 1932mentioning

confidence: 99%

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Nummulitids, lepidocyclinids and Sr-isotope data from the Oligocene of Kutch (western India) with chronostratigraphic and paleobiogeographic evaluations

et al. 2018

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“…orbitoideus Douvillé, 1905;. We agree with Cole (1969) in considering that the name 'margaritatus' should be used as prioritary respect to 'orbitoideus'.…”

Section: Genus Heterostegina D'orbigny 1826mentioning

confidence: 57%

Section: Genus Heterostegina D'orbigny 1826mentioning

confidence: 99%

Section: Family Lepidocyclinidae Scheffen 1932mentioning

confidence: 99%

See 1 more Smart Citation

Nummulitids, lepidocyclinids and Sr-isotope data from the Oligocene of Kutch (western India) with chronostratigraphic and paleobiogeographic evaluations

et al. 2018

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“…for dredged larger foraminifers from Kammu Seamount (Sachs, quoted in Clague and Jarrard, 1973), and (3) an early Maestrichtian date for nannoflora in sediments above basalt in DSDP Hole 192A on Meiji Seamount (Worsley, 1973). Other fossil ages from drill holes on Midway (Cole, 1969;Todd and Low 1970), from DSDP Site 308 on Kökö Seamount (Bukry, 1975), and from the Leg 55 sites (this volume) on Ojin, Nin-toku, and Suiko Seamounts are consistent with the K-Ar data from those volcanoes.…”

Section: Discussionmentioning

confidence: 97%

Conventional and 40Ar/39Ar K-Ar Ages of Volcanic Rocks from ťjin (Site 430), Nintoku (Site 432), and Suiko (Site 433) Seamounts and the Chronology of Volcanic Propagation Along the Hawaiian-Emperor Chain

G.B.¹,

M.A.²

1980

Initial Reports of the Deep Sea Drilling Project

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Conventional K-Ar, 40 Ar/ 39 Ar total fusion, and ^Ar/^Ar incremental heating data on hawaiite and tholeiitic basalt samples from Ojin (Site 430), alkalic basalt samples from Nintoku (Site 432), and alkalic and tholeiitic basalt samples from Suiko (Site 433) seamounts in the Emperor Seamount chain give the following best ages for these volcanoes: Ojin = 55.2 ± 0.7 m.y., Nintoku = 56.2 ± 0.6 m.y., and Suiko = 64.7 ±1.1 m.y. These new data bring to 27 the number of dated volcanoes in the Hawaiian-Emperor volcanic chain. The new dates prove that the age progression from Kilauea Volcano on Hawaii (0 m.y.) through the Hawaiian-Emperor bend (-43 m.y.) to Kökö Seamount (48.1 m.y.) in the southernmost Emperor Seamounts continues more than halfway up the Emperor chain to Suiko Seamount.The age versus distance data for the Hawaiian-Emperor chain are consistent with the kinematic hot-spot hypothesis, which predicts that the volcanoes are progressively older west and north away from the active volcanoes of Kilauea and Mauna Loa. The data are consistent with an average volcanic propagation velocity of either 8 cm/year from Suiko to Kilauea or of 6 cm/year from Suiko to Midway followed by a velocity of 9 cm/year from Midway to Kilauea, but it appears that the change in direction that formed the HawaiianEmperor bend probably was not accompanied by a major change in velocity.

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“…Existing paleontological reports (summarized by Major and Matthews [1983]) indicate only that the cored section is of Plio-Pleistocene age down to 145 m, Tertiary g (approximately 5-10 Ma) from 146 to 169 m, and Tertiary e (older than about 15 Ma) below 169 m. The Tertiary f zone (mid-Miocene) is missing. Specimens of the larger foraminifer Miogypsinoides were found at depths of 595-927 feet (illustrated in the work by Cole [1969]) and suggest that the upper part of the Tertiary e (Te) section is unlikely to be younger than about 18 Ma (J. Hardenbol, personal communication, 1986).…”

Section: Midway Atoll Is Part Of the Hawaiian-emperormentioning

confidence: 99%

Estimating short‐term changes in Eustatic sea level

Moore¹,

Loutit²,

Greenlee³

1987

Paleoceanography

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The history of short-term eustatic sea level change proposed by P. R. Vail and his coworkers was originally based on shifts through time in the landward pinchout of seismic sequences. In order to quantify the magnitude of these proposed sea level changes, histories of subsidence, sediment loading, sediment compaction and paleowater depth are required. Of these, accurate estimates of paleowater depth and subsidence are the most difficult to derive. This approach is applied to two example data sets. For one study, the Midway Atoll, we use the theoretical subsidence model of Detrick et al. (1981). The possible error in this model is approximately the same as the extreme differences in sea level highstands (50-100 m) proposed by previous investigators. The second example is from the Baltimore Canyon area. Here we estimate subsidence by an average angular tilt rate. Resulting estimates of sea level highstands for the past 30 Ma are similar to the long-term sea level estimates of Kominz (1984); however, the overall variation in the highstands parallels that of Haq et al. (1987). Short-term sea level falls are estimated to be similar in magnitude to those of Haq et al. (1987). Most of these short-term fluctuations are within the range of reasonable glacioeustatic fluctuations (30-100 m). A correlation is found between the estimated short-term changes in sea level and the Miocene oxygen isotope record. This correlation exists both prior to and after 14 Ma; however, there is a 1.08%0 isotopic shift in the data in the Middle Miocene. Because estimated highstands are within 10-15 m of being the same magnitude before and after this shift, we suggest that this shift is caused mainly by a cooling of deep waters. 0.0 ß V ß ß ß V V ß ß ß ß J Woodruff, F., and S. M. Savin, C values of Miocene Pacific benthic foraminifera: Correlations with sea level and productivity, Geology, 13, 119-122, 1985.

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Larger Foraminifera from deep drill holes on Midway atoll

Cited by 14 publications

References 3 publications

Nummulitids, lepidocyclinids and Sr-isotope data from the Oligocene of Kutch (western India) with chronostratigraphic and paleobiogeographic evaluations

Nummulitids, lepidocyclinids and Sr-isotope data from the Oligocene of Kutch (western India) with chronostratigraphic and paleobiogeographic evaluations

Conventional and 40Ar/39Ar K-Ar Ages of Volcanic Rocks from ťjin (Site 430), Nintoku (Site 432), and Suiko (Site 433) Seamounts and the Chronology of Volcanic Propagation Along the Hawaiian-Emperor Chain

Estimating short‐term changes in Eustatic sea level

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