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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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 EpochEpochBarash, Max S
2 Dictyoprora mongolfieriD. mongolfieriBarash, Max SMicroscopy
3 Arthophormis barbadensisA. barbadensisBarash, Max SMicroscopy
4 Lithomitra elizabethaeL. elizabethaeBarash, Max SMicroscopyaff.
5 Theocyrtis tuberosaT. tuberosaBarash, Max SMicroscopy
6 Triceraspyris tricerosT. tricerosBarash, Max SMicroscopy
7 Artophormis gracilisA. gracilisBarash, Max SMicroscopy
8 Dendrospyris anthocyrtoidesD. anthocyrtoidesBarash, Max SMicroscopy
9 OrosphaeridaeOrosphaeridaeBarash, Max SMicroscopyspines
10 Cyclampterium pegetrumC. pegetrumBarash, Max SMicroscopy
11 Stichocorys seriataS. seriataBarash, Max SMicroscopy
12 Didymocyrtis prismaticaD. prismaticaBarash, Max SMicroscopy
13 Dorcadospyris ateuchusD. ateuchusBarash, Max SMicroscopy
14 Theocyrtis annosaT. annosaBarash, Max SMicroscopy
15 Lychnocanoma elongataL. elongataBarash, Max SMicroscopy
16 Theocorys spongoconumT. spongoconumBarash, Max SMicroscopy
17 Acrosphaera murrayanaA. murrayanaBarash, Max SMicroscopy
18 Anthocyrtidium ophirenseA. ophirenseBarash, Max SMicroscopy
19 Arachnocorallium calvataA. calvataBarash, Max SMicroscopy
20 Botryocyrtis scutumB. scutumBarash, Max SMicroscopy
21 Buccinosphaera invaginataB. invaginataBarash, Max SMicroscopy
22 Carpocanium nigriniaeC. nigriniaeBarash, Max SMicroscopy
23 Collosphaera cribrosaC. cribrosaBarash, Max SMicroscopy
24 Collosphaera orthoconusC. orthoconusBarash, Max SMicroscopy
25 Collosphaera tuberosaC. tuberosaBarash, Max SMicroscopy
26 Cornutella verrucosaC. verrucosaBarash, Max SMicroscopy
27 Euchitonia sp.Euchitonia sp.Barash, Max SMicroscopy
28 Hymeniastrum euclidisH. euclidisBarash, Max SMicroscopy
29 Larcospira quadrangulaL. quadrangulaBarash, Max SMicroscopy
30 Lophophaena hispidaL. hispidaBarash, Max SMicroscopy
31 Ommatartus tetrathalamusO. tetrathalamusBarash, Max SMicroscopy
32 Pterocanium praetextumP. praetextumBarash, Max SMicroscopy
33 Pterocorys minythoraxP. minythoraxBarash, Max SMicroscopy
34 Solenosphaera zanguebaricaS. zanguebaricaBarash, Max SMicroscopy
35 Spongaster tetrasS. tetrasBarash, Max SMicroscopy
36 Theocorythium tracheliumT. tracheliumBarash, Max SMicroscopy
37 Coscinodiscus craspedodiscusC. craspedodiscusBarash, Max SMicroscopy
38 Cestodiscus pulchellusC. pulchellusBarash, Max SMicroscopy
39 Pseudoeunotia doliolusP. doliolusBarash, Max SMicroscopy
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
429 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Epoch		2 
D. mongolfieri		3 
A. barbadensis		4 
L. elizabethae		5 
T. tuberosa		6 
T. triceros		7 
A. gracilis		8 
D. anthocyrtoides		9 
Orosphaeridae		10 
C. pegetrum		11 
S. seriata		12 
D. prismatica		13 
D. ateuchus		14 
T. annosa		15 
L. elongata		16 
T. spongoconum		17 
A. murrayana		18 
A. ophirense		19 
A. calvata		20 
B. scutum		21 
B. invaginata		22 
C. nigriniae		23 
C. cribrosa		24 
C. orthoconus		25 
C. tuberosa		26 
C. verrucosa		27 
Euchitonia sp.		28 
H. euclidis		29 
L. quadrangula		30 
L. hispida		31 
O. tetrathalamus		32 
P. praetextum		33 
P. minythorax		34 
S. zanguebarica		35 
S. tetras		36 
T. trachelium		37 
C. craspedodiscus		38 
C. pulchellus		39 
P. doliolus
Quaternary---------------AAAAFARCRAAAAAAAAAAA--C
Late Pliocene---------------C-------------C---F----
Early Pliocene-----------------------------F--------
Late Miocene--------------------------------------
Middle Miocene-------------F------------------------
Early Miocene----FF-FFFFFFFF-----------------------
Late Oligocene---CCCCCCCCCCC---------------------CC-
Early Oligocene-FFCCCCCCCF---------------------------
Late EoceneFF-FF---------------------------------
Middle EoceneFF-FF---------------------------------
Early Eocene--------------------------------------