10.1594/PANGAEA.728318
Kaczmarska, Irena
Irena
Kaczmarska
(Table 1) Diatom species composition and distribution at ODP Site 116-717C
PANGAEA
1990
Event label
Sample code/label
Achnanthes lanceolata
Actinocyclus ehrenbergii
Actinocyclus ehrenbergii sparsa
Actinocyclus ehrenbergii var. tenella
Actinocyclus ellipticus
Actinocyclus ellipticus forma lanceolata
Actinocyclus grinnensis
Actinocyclus normanii forma subsalsa
Actinoptychus senarius
Actinoptychus senarius minor
Actinoptychus splendens
Actinoptychus vulgaris
Azpeitia africana
Azpeitia nodulifera
Bacteriastrum comosum
Biddulphia tuomeyi
Cerataulina bicornis
Chaetoceros furcatus
Chaetoceros mitra
Coscinodiscus argus
Coscinodiscus curvatus
Coscinodiscus curvatus var. minor
Coscinodiscus fimbriatus
Coscinodiscus lineatus ellipticus
Coscinodiscus nitidus
Coscinodiscus symbolophorus
Coscinodiscus temperei
Cyclotella stylorum
Cymbella affinis
Diploneis bombus
Diploneis sp.
Diploneis smithii
Diploneis weissflogii
Epithemia adnata var. proboscioidea
Epithemia turgida
Ethmodiscus gazellae
Ethmodiscus rex
Gomphonema parvulum var. micropus
Grammatophora undulata
Hemidiscus cuneiformis
Hyalodiscus radiatus
Leptocylindrus danicus
Melosira granulata
Navicula hennedyi
Nitzschia marina
Paralia sulcata
Pinnularia borealis
Podosira stelliger
Pterotheca reticulata
Rhaphoneis amphiceros var. geminifera
Rhaphoneis surirella
Rhizosolenia bergonii
Rhizosolenia hebetata
Rhizosolenia hebetata var. semispina
Rhizosolenia hebetata forma subacuta
Rhizosolenia praebergonii robusta
Rhopalodia gibba
Roperia tesselata
Schimperiella antarctica
Stephanodiscus turris
Synedra ulna
Thalassionema nitzschioides
Thalassionema nitzschioides var. parva
Thalassiosira eccentrica
Thalassiosira leptopus
Thalassiosira oestrupii
Thalassiosira oestrupii var. venrickae
Thalassiosira plicata
Thalassiothrix longissima
Thalassiothrix fraudenfeldii
Trachyneis aspera
Triceratium dubium
Triceratium favus
Xanthiopyxis bipolaris
Xanthiopyxis diaphana
Xanthiopyxis oblonga
Drilling/drill rig
DSDP/ODP/IODP sample designation
Leg116
Joides Resolution
Ocean Drilling Program (ODP)
1987-07-10T00:00:00
en
Supplementary Dataset
10.2973/odp.proc.sr.116.128.1990
1463 data points
text/tab-separated-values
Creative Commons Attribution 3.0 Unported
Autochthonous marine pelagic and allochthonous coastal and freshwater diatoms were encountered in five samples from the Ocean Drilling Program (ODP) Leg 116 Holes 717A, 717B, and 717C. Allochthonous diatoms were transported to the equatorial Indian Ocean from inland locations and coastal waters, respectively. The pelagic diatom assemblage consists mainly of warm and/or tropical diatoms known from the Neogene to Holocene. A stratigraphic marker, Rhizosolenia praebergonii var. robusta, which indicates Pliocene-Pleistocene (2.4-1.55 Ma) age of the sediments, was present in the samples from Core 116-717C-27X. Species composition of the whole assemblage is most similar to the tropical Indian Ocean Diatom Zone 6 of Schrader and supports an estimated age of 1.8-2.1 Ma for the sediments.
X = present, - = absent
Supplement to: Kaczmarska, Irena (1990): Diatoms at Site 717, Leg 116. In: Cochran, JR; Stow, DAV, et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 116, 239-242
81.3901
-0.9297999999999998
South Indian Ridge, South Indian Ocean