Capotondi, Lucilla; Girone, Angela; Lirer, Fabrizio; Bergami, Caterina; Verducci, Marina; Vallefuoco, Mattia; Afferri, Angelica; Ferraro, Luciana; Pelosi, Nicola; de Lange, Gert J (2016): Planktonic foraminiferal assemblages in sediment core KC01B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.856737, Supplement to: Capotondi, L et al. (2016): Central Mediterranean Mid-Pleistocene paleoclimatic variability and its association with global climate. Palaeogeography, Palaeoclimatology, Palaeoecology, 442, 72-83, https://doi.org/10.1016/j.palaeo.2015.11.009
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Abstract:
Planktonic foraminiferal assemblages were studied at high-resolution in core KC01B from the Ionian Sea. Quantitative analysis allowed us to distinguish the main climatic features and associated paleoceanographic changes, that occurred between Marine Isotopic Stages (MIS) 13 and 9 (~500-300 ka).
MIS 12 and MIS 10 are characterized by relatively temperate conditions and an oligotrophic oceanographic regime in the early part and by colder conditions and nutrient supply in the sub-surface water masses in the upper part. During these intervals, small but distinct peaks of Neogloboquadrina pachyderma sinistral (sin) are detected at times of extremely negative values of the planktonic foraminifera paleoclimatic curve. Their co-occurrence with similar episodes in the Atlantic suggests that the climate in the Central Mediterranean was associated with north-Atlantic millennial-scale climate instability. MIS 11 and MIS 9 are dominated by surficial warm-water taxa. The climate optimum is reached in the middle part of each of these stages, as denoted by the presence of Globigerinoides sacculifer, and persists for approximately 20 and 6 ka during MIS 11 and MIS 9 respectively. This warming is not constant but is characterized by three distinct intervals with elevated winter temperatures and/or weak winter mixing.
Distribution of Globigerina bulloides, Turborotalita quinqueloba and N. pachyderma dextral (dex) indicates that significant environmental changes occur across the transitions from glacial to interglacial MIS 12/MIS 11 (Termination V) and MIS 10/MIS 9 (Termination IV).
The studied record documents a close linkage between Mediterranean climate evolution and higher- and lower-latitude climate change throughout MIS 13-9.
Coverage:
Latitude: 36.250000 * Longitude: 17.740000
Date/Time Start: 1991-01-01T00:00:00 * Date/Time End: 1991-01-01T00:00:00
Minimum DEPTH, sediment/rock: 15.845 m * Maximum DEPTH, sediment/rock: 21.820 m
Event(s):
KC01B * Latitude: 36.250000 * Longitude: 17.740000 * Date/Time: 1991-01-01T00:00:00 * Elevation: -3643.0 m * Recovery: 37.04 m * Location: Calabrian Ridge * Campaign: CLIVAMPcruises * Basis: Ship of opportunity * Method/Device: Piston corer (PC) * Comment: No: KC01B
Comment:
Counting a minimum 300 specimens.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Capotondi, Lucilla | Geocode – Corrected_pd (m b.s.f.)- Lourens (2009) | |
| 2 | Globigerina bulloides | G. bulloides | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 3 | Globigerinita glutinata | G. glutinata | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 4 | Globigerinoides ruber | G. ruber | % | Capotondi, Lucilla | Counting >125 µm fraction | total |
| 5 | Globigerinoides sacculifer | G. sacculifer | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 6 | Globigerinoides tenellus | G. tenellus | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 7 | Globigerina rubescens | G. rubescens | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 8 | Hastigerina siphonifera | H. siphonifera | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 9 | Orbulina spp. | Orbulina spp. | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 10 | Globorotalia truncatulinoides | G. truncatulinoides | % | Capotondi, Lucilla | Counting >125 µm fraction | total |
| 11 | Globorotalia inflata | G. inflata | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 12 | Globorotalia scitula | G. scitula | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 13 | Turborotalia quinqueloba | T. quinqueloba | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 14 | Neogloboquadrina pachyderma sinistral | N. pachyderma s | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 15 | Neogloboquadrina pachyderma dextral | N. pachyderma d | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 16 | Neogloboquadrina dutertrei | N. dutertrei | % | Capotondi, Lucilla | Counting >125 µm fraction | |
| 17 | Foraminifera, planktic, other | Foram plankt oth | % | Capotondi, Lucilla | Counting >125 µm fraction |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
9360 data points
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