The last 1millionyears of the extinct genus Discoaster: Plio-Pleistocene environment and productivity at Site U1476 (Mozambique Channel)
A detailed paleoenvironment reconstruction from the Mozambique Channel, western Indian Ocean, based on the calcareous nannoplankton assemblages was conducted for the interval between 2.85 and 1.85Myr. This study covers the period during which the successive extinction of the last five species of dis...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
2 June 2018
|
| In: |
Palaeogeography, palaeoclimatology, palaeoecology
Year: 2018, Volume: 505, Pages: 187-197 |
| ISSN: | 0031-0182 |
| DOI: | 10.1016/j.palaeo.2018.05.043 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1016/j.palaeo.2018.05.043 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S003101821830186X 
|
| Author Notes: | Deborah N. Tangunan, Karl-Heinz Baumann, Janna Just, Leah J. LeVay, Stephen Barker, Luna Brentegani, David De Vleeschouwer, Ian R. Hall, Sidney Hemming, Richard Norris, the Expedition 361 Shipboard Scientific Party 1 [darunter: Andreas Koutsodendris] |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1676359079 | ||
| 003 | DE-627 | ||
| 005 | 20220816222456.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 190910s2018 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.palaeo.2018.05.043 |2 doi | |
| 035 | |a (DE-627)1676359079 | ||
| 035 | |a (DE-599)KXP1676359079 | ||
| 035 | |a (OCoLC)1341242840 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 31 |2 sdnb | ||
| 100 | 1 | |a Tangunan, Deborah N. |e VerfasserIn |0 (DE-588)1194389155 |0 (DE-627)1676358714 |4 aut | |
| 245 | 1 | 4 | |a The last 1millionyears of the extinct genus Discoaster |b Plio-Pleistocene environment and productivity at Site U1476 (Mozambique Channel) |c Deborah N. Tangunan, Karl-Heinz Baumann, Janna Just, Leah J. LeVay, Stephen Barker, Luna Brentegani, David De Vleeschouwer, Ian R. Hall, Sidney Hemming, Richard Norris, the Expedition 361 Shipboard Scientific Party 1 [darunter: Andreas Koutsodendris] |
| 264 | 1 | |c 2 June 2018 | |
| 300 | |a 11 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 10.09.2019 | ||
| 520 | |a A detailed paleoenvironment reconstruction from the Mozambique Channel, western Indian Ocean, based on the calcareous nannoplankton assemblages was conducted for the interval between 2.85 and 1.85Myr. This study covers the period during which the successive extinction of the last five species of discoasters occurred. New productivity data obtained from the abundances of the Discoaster species (Discoaster brouweri, D. triradiatus, D. pentaradiatus, D. surculus, and D. tamalis) and other indicative calcareous nannoplankton taxa showed abundance variations, which were at paced with the 100, 41, and 23kyr astronomical periodicities. A shift in the productivity and water-column stratification proxies occurred at ~2.4Ma, after the onset of the Northern Hemisphere glaciation. Here we propose that the variability recorded at International Ocean Discovery Program Site U1476 reflects the interplay between forcing associated with warm tropical Pacific and cold southern ocean influences. The former is shown by consistent occurrence of warm water taxa (Calcidiscus leptoporus, Oolithotus spp., Rhabdosphaera clavigera, Syracosphaera spp., Umbellosphaera spp.), typical of Indonesian Throughflow surface waters. On the other hand, the occurrence of Coccolithus pelagicus indicates the influence of cold, nutrient-rich sub-Antarctic surface waters. A more mixed water column initiated at ~2.4Ma, and a consequent productivity increase led to the gradual reduction of the Discoaster species, until their extinction at 1.91Ma. This period was characterized by the low values of the Florisphaera profunda index and high abundances of upper photic zone flora, indicative of nutrient-rich surface water conditions. High productivity at the location during this period could have also been amplified by localized upwelling events driven by the Mozambique Channel eddies. | ||
| 650 | 4 | |a Calcareous nannofossils | |
| 650 | 4 | |a Expedition 361 | |
| 650 | 4 | |a Nannoplankton | |
| 650 | 4 | |a Western Indian Ocean | |
| 700 | 1 | |a Baumann, Karl-Heinz |e VerfasserIn |0 (DE-588)119438868X |0 (DE-627)1676358404 |4 aut | |
| 700 | 1 | |a Koutsodendris, Andreas |d 1978- |e VerfasserIn |0 (DE-588)1013631080 |0 (DE-627)66462748X |0 (DE-576)347465781 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Palaeogeography, palaeoclimatology, palaeoecology |d Amsterdam [u.a.] : Elsevier Science, 1965 |g 505(2018), Seite 187-197 |h Online-Ressource |w (DE-627)306363968 |w (DE-600)1497393-5 |w (DE-576)116226196 |x 0031-0182 |7 nnas |a The last 1millionyears of the extinct genus Discoaster Plio-Pleistocene environment and productivity at Site U1476 (Mozambique Channel) |
| 773 | 1 | 8 | |g volume:505 |g year:2018 |g pages:187-197 |g extent:11 |a The last 1millionyears of the extinct genus Discoaster Plio-Pleistocene environment and productivity at Site U1476 (Mozambique Channel) |
| 856 | 4 | 0 | |u https://doi.org/10.1016/j.palaeo.2018.05.043 |x Verlag |x Resolving-System |3 Volltext |
| 856 | 4 | 0 | |u http://www.sciencedirect.com/science/article/pii/S003101821830186X |x Verlag |x Resolving-System |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20190910 | ||
| 993 | |a Article | ||
| 994 | |a 2018 | ||
| 998 | |g 1013631080 |a Koutsodendris, Andreas |m 1013631080:Koutsodendris, Andreas |d 120000 |d 121000 |e 120000PK1013631080 |e 121000PK1013631080 |k 0/120000/ |k 1/120000/121000/ | ||
| 999 | |a KXP-PPN1676359079 |e 3514185859 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"title":[{"title":"The last 1millionyears of the extinct genus Discoaster","subtitle":"Plio-Pleistocene environment and productivity at Site U1476 (Mozambique Channel)","title_sort":"last 1millionyears of the extinct genus Discoaster"}],"person":[{"family":"Tangunan","given":"Deborah N.","role":"aut","display":"Tangunan, Deborah N."},{"role":"aut","given":"Karl-Heinz","family":"Baumann","display":"Baumann, Karl-Heinz"},{"given":"Andreas","role":"aut","family":"Koutsodendris","display":"Koutsodendris, Andreas"}],"language":["eng"],"physDesc":[{"extent":"11 S."}],"type":{"media":"Online-Ressource","bibl":"article-journal"},"origin":[{"dateIssuedKey":"2018","dateIssuedDisp":"2 June 2018"}],"id":{"eki":["1676359079"],"doi":["10.1016/j.palaeo.2018.05.043"]},"recId":"1676359079","name":{"displayForm":["Deborah N. Tangunan, Karl-Heinz Baumann, Janna Just, Leah J. LeVay, Stephen Barker, Luna Brentegani, David De Vleeschouwer, Ian R. Hall, Sidney Hemming, Richard Norris, the Expedition 361 Shipboard Scientific Party 1 [darunter: Andreas Koutsodendris]"]},"note":["Gesehen am 10.09.2019"],"relHost":[{"origin":[{"dateIssuedKey":"1965","publisher":"Elsevier Science","dateIssuedDisp":"1965-","publisherPlace":"Amsterdam [u.a.]"}],"id":{"zdb":["1497393-5"],"issn":["0031-0182"],"eki":["306363968"]},"part":{"year":"2018","text":"505(2018), Seite 187-197","extent":"11","pages":"187-197","volume":"505"},"recId":"306363968","disp":"The last 1millionyears of the extinct genus Discoaster Plio-Pleistocene environment and productivity at Site U1476 (Mozambique Channel)Palaeogeography, palaeoclimatology, palaeoecology","title":[{"title_sort":"Palaeogeography, palaeoclimatology, palaeoecology","title":"Palaeogeography, palaeoclimatology, palaeoecology"}],"note":["Fortsetzung der Druck-Ausgabe","Gesehen am 31.05.2023"],"type":{"bibl":"periodical","media":"Online-Ressource"},"language":["eng"],"pubHistory":["1.1965 - 312.2011; Vol. 313/314.2012 -"],"physDesc":[{"extent":"Online-Ressource"}]}]} | ||
| SRT | |a TANGUNANDELAST1MILLI2201 | ||