Barash, Max S; Kruglikova, Svetlana B; Mukhina, Valentina V (2000): Microfossils detected in a block of ancient dense clay coated with a ferromanganese crust, Clarion-Clipperton Province, East Equatorial Pacific [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.763545, Supplement to: Barash, MS et al. (2000): Stratigraphic features of the sedimentary formationsof the Clarion-Clipperton Province (Eastern Equatorial Pacific). Translated from Okeanologiya, 2000, 40(3), 424-433, Oceanology, 40(3), 396-405
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Abstract:
The area in study is characterized by a regional stratigraphic hiatus from Early Miocene to Quaternary. Deposits from Late Eocene to Early Miocene occur on the bottom surface or under a thin sedimentary cover. Ferromanganese nodules, mostly of Oligocene age, formed on surface layers of Tertiary or Quaternary sediments. A detailed micropaleontological study of a block of dense ancient clay coated with a ferromanganese crust was carried out. Composition of found radiolarian and diatomaceous complexes proved that the crust formed in Quaternary on an eroded surface of Late Oligocene clay. In Quaternary Neogene sediments were eroded and washed away by bottom currents. It is likely that the erosion began 0.9-0.7 Ma at the beginning of the "Glacial Pleistocene". The erosion could be initiated by loosening and resuspension of surface sediments resulting from seismic activity generated by strong earthquakes in the Central America subduction zone. The same vibration maintained residual nodules at the seafloor surface. Thus, for the area in study a common reason and a common Quaternary interval for formation of the following features is supposed: a regional stratigraphic hiatus, formation of residual nodule fields, and position of ancient nodules on the surface of Quaternary sediments.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Latitude: 13.550000 * Longitude: -133.033333
Minimum Elevation: -4920.0 m * Maximum Elevation: -4920.0 m
Event(s):
DM41-3833-12GR * Latitude: 13.550000 * Longitude: -133.033333 * Elevation: -4920.0 m * Location: Pacific Ocean * Campaign: DM41 * Basis: Dmitry Mendeleev * Method/Device: Grab (GRAB)
Comment:
A = abundant; C = common; R = rare; F = few; - = absent.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Epoch | Epoch | Barash, Max S | |||
| 2 | Dictyoprora mongolfieri | D. mongolfieri | Barash, Max S | Microscopy | ||
| 3 | Arthophormis barbadensis | A. barbadensis | Barash, Max S | Microscopy | ||
| 4 | Lithomitra elizabethae | L. elizabethae | Barash, Max S | Microscopy | aff. | |
| 5 | Theocyrtis tuberosa | T. tuberosa | Barash, Max S | Microscopy | ||
| 6 | Triceraspyris triceros | T. triceros | Barash, Max S | Microscopy | ||
| 7 | Artophormis gracilis | A. gracilis | Barash, Max S | Microscopy | ||
| 8 | Dendrospyris anthocyrtoides | D. anthocyrtoides | Barash, Max S | Microscopy | ||
| 9 | Orosphaeridae | Orosphaeridae | Barash, Max S | Microscopy | spines | |
| 10 | Cyclampterium pegetrum | C. pegetrum | Barash, Max S | Microscopy | ||
| 11 | Stichocorys seriata | S. seriata | Barash, Max S | Microscopy | ||
| 12 | Didymocyrtis prismatica | D. prismatica | Barash, Max S | Microscopy | ||
| 13 | Dorcadospyris ateuchus | D. ateuchus | Barash, Max S | Microscopy | ||
| 14 | Theocyrtis annosa | T. annosa | Barash, Max S | Microscopy | ||
| 15 | Lychnocanoma elongata | L. elongata | Barash, Max S | Microscopy | ||
| 16 | Theocorys spongoconum | T. spongoconum | Barash, Max S | Microscopy | ||
| 17 | Acrosphaera murrayana | A. murrayana | Barash, Max S | Microscopy | ||
| 18 | Anthocyrtidium ophirense | A. ophirense | Barash, Max S | Microscopy | ||
| 19 | Arachnocorallium calvata | A. calvata | Barash, Max S | Microscopy | ||
| 20 | Botryocyrtis scutum | B. scutum | Barash, Max S | Microscopy | ||
| 21 | Buccinosphaera invaginata | B. invaginata | Barash, Max S | Microscopy | ||
| 22 | Carpocanium nigriniae | C. nigriniae | Barash, Max S | Microscopy | ||
| 23 | Collosphaera cribrosa | C. cribrosa | Barash, Max S | Microscopy | ||
| 24 | Collosphaera orthoconus | C. orthoconus | Barash, Max S | Microscopy | ||
| 25 | Collosphaera tuberosa | C. tuberosa | Barash, Max S | Microscopy | ||
| 26 | Cornutella verrucosa | C. verrucosa | Barash, Max S | Microscopy | ||
| 27 | Euchitonia sp. | Euchitonia sp. | Barash, Max S | Microscopy | ||
| 28 | Hymeniastrum euclidis | H. euclidis | Barash, Max S | Microscopy | ||
| 29 | Larcospira quadrangula | L. quadrangula | Barash, Max S | Microscopy | ||
| 30 | Lophophaena hispida | L. hispida | Barash, Max S | Microscopy | ||
| 31 | Ommatartus tetrathalamus | O. tetrathalamus | Barash, Max S | Microscopy | ||
| 32 | Pterocanium praetextum | P. praetextum | Barash, Max S | Microscopy | ||
| 33 | Pterocorys minythorax | P. minythorax | Barash, Max S | Microscopy | ||
| 34 | Solenosphaera zanguebarica | S. zanguebarica | Barash, Max S | Microscopy | ||
| 35 | Spongaster tetras | S. tetras | Barash, Max S | Microscopy | ||
| 36 | Theocorythium trachelium | T. trachelium | Barash, Max S | Microscopy | ||
| 37 | Coscinodiscus craspedodiscus | C. craspedodiscus | Barash, Max S | Microscopy | ||
| 38 | Cestodiscus pulchellus | C. pulchellus | Barash, Max S | Microscopy | ||
| 39 | Pseudoeunotia doliolus | P. doliolus | Barash, Max S | Microscopy |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
429 data points