de.pangaea.dataset992687 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-04-30T20:45:44Z https://doi.pangaea.de/10.1594/PANGAEA.992687 <gco:CharacterString>n-Alkane concentrations and molecular indices (CPI, ACL, Paq) from Holocene marine sediment cores MDBT 557 and MDBT 561 (southern Brazilian shelf)</gco:CharacterString> 2026-03-09T06:55:31 publication https://doi.org/10.1594/PANGAEA.992687 Santos, Felipe Rodrigues
feliperod@usp.br
https://orcid.org/0000-0001-8756-5036 information author Lourenço, Rafael André
rafaell@usp.br
author Taniguchi, Satie author Martins, César de Castro
ccmart@usp.br
author Wainer, Ilana E K C
wainer@usp.br
https://orcid.org/0000-0003-3784-623X information author Mahiques, Michel Michaelovitch
mahiques@usp.br
https://orcid.org/0000-0002-5249-5610 information author Nagai, Renata Hanae
renatanagai@gmail.com
https://orcid.org/0000-0002-1358-5074 information author Figueira, Rubens César Lopes
rfigueira@usp.br
https://orcid.org/0000-0001-8945-4540 information author Bouloubassi, Ioanna D
ioanna.bouloubassi@locean.ipsl.fr
author Bicego, Marcia C
marciabicego@usp.br
author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital This dataset presents concentrations of long-chain n-alkanes (nC25–nC33) and derived molecular indices, including Carbon Preference Index (CPI), Average Chain Length (ACL), and Paq, from Holocene marine sediment cores MDBT 557 and MDBT 561, recovered from the southern Brazilian continental shelf. Lipid biomarkers were extracted using organic solvents, purified by column chromatography, and quantified by gas chromatography with flame ionization detection (GC-FID), with surrogate standards used to assess analytical recovery. These data characterize variations in terrigenous organic matter input, vegetation-related signals, and hydrological conditions affecting the continental margin during the Holocene. completed Santos, Felipe Rodrigues
feliperod@usp.br
https://orcid.org/0000-0001-8756-5036 information principalInvestigator alkanes La Plata River southern Brazilian margin vegetation changes theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -52.21 -51.3 -33.79 -33.27 2019-06-02T12:20:00 2019-06-02T13:22:00 Event label thematicClassification Latitude of event thematicClassification Longitude of event thematicClassification Date/Time of event thematicClassification Elevation of event physicalMeasurement m m AGE physicalMeasurement Age, 14C calibrated; Age model according to Blaauw and Christen (2011), using BACON v2.4.3, with calibration using Marine20 (Heaton et al., 2020) ka BP ka BP n-Alkanes, sum, per unit sediment mass physicalMeasurement summarized µg/g µg/g Sum n-alkanes C25-C33 physicalMeasurement Gas chromatography - Flame Ionization Detection (GC-FID), Agilent Technologies, HP7890B µg/g µg/g n-Alkanes, average chain length thematicClassification Calculated according to Poynter (1989) Average chain length, n-Alkanes, C27-C33 thematicClassification Calculated according to Poynter (1989) Carbon Preference Index thematicClassification Calculated according to Bray and Evans (1961) Aquatic n-alkane proxy thematicClassification Calculated text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.992687?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: MDBT_557 * LATITUDE: -33.790000 * LONGITUDE: -52.210000 * DATE/TIME: 2019-06-02T12:20:00 * ELEVATION: -90.0 m * LOCATION: Brazilian southeastern continental shelf * METHOD/DEVICE: Gravity corer 2019-06-02T12:20:00 EVENT LABEL: MDBT_561 * LATITUDE: -33.270000 * LONGITUDE: -51.300000 * DATE/TIME: 2019-06-02T13:22:00 * ELEVATION: -80.0 m * LOCATION: Brazilian southeastern continental shelf * METHOD/DEVICE: Gravity corer 2019-06-02T13:22:00 Supplement to <gco:CharacterString>Holocene composition, origin, and evolution of terrigenous organic matter in the southwestern Atlantic Ocean: Insights about vegetation, climate and oceanographic variations</gco:CharacterString> Santos, Felipe Rodrigues
feliperod@usp.br
https://orcid.org/0000-0001-8756-5036 information author Lourenço, Rafael André
rafaell@usp.br
author Taniguchi, Satie author Martins, César de Castro
ccmart@usp.br
author Wainer, Ilana E K C
wainer@usp.br
https://orcid.org/0000-0003-3784-623X information author Mahiques, Michel Michaelovitch
mahiques@usp.br
https://orcid.org/0000-0002-5249-5610 information author Nagai, Renata Hanae
renatanagai@gmail.com
https://orcid.org/0000-0002-1358-5074 information author Figueira, Rubens César Lopes
rfigueira@usp.br
https://orcid.org/0000-0001-8945-4540 information author Bouloubassi, Ioanna D
ioanna.bouloubassi@locean.ipsl.fr
author Bicego, Marcia C
marciabicego@usp.br
author documentHardcopy Paleoceanography and Paleoclimatology References <gco:CharacterString>Flexible paleoclimate age-depth models using an autoregressive gamma process</gco:CharacterString> 2011-01-01 publication https://doi.org/10.1214/11-BA618 Blaauw, Maarten
maarten.blaauw@qub.ac.uk
https://orcid.org/0000-0002-5680-1515 information author Christen, Andrés https://orcid.org/0000-0002-5795-4345 information author documentDigital Bayesian Analysis 6(3) 457-474 References <gco:CharacterString>Distribution of n-paraffins as a clue to recognition of source beds</gco:CharacterString> 1961-01-01 publication https://doi.org/10.1016/0016-7037(61)90069-2 Bray, E E author Evans, E D author documentDigital Geochimica et Cosmochimica Acta 22(1) 2-15 References <gco:CharacterString>Marine20 - the marine radiocarbon age calibration curve (0-55,000 cal BP)</gco:CharacterString> 2020-01-01 publication https://doi.org/10.1017/RDC.2020.68 Heaton, Timothy J https://orcid.org/0000-0002-9994-142X information author Köhler, Peter
Peter.Koehler@awi.de
https://orcid.org/0000-0003-0904-8484 information author Butzin, Martin
mbutzin@marum.de
https://orcid.org/0000-0002-9275-7304 information author Bard, Edouard
bard@cerege.fr
https://orcid.org/0000-0002-7237-8622 information author Reimer, Ron W author Austin, William EN
bill.austin@st-andrews.ac.uk
https://orcid.org/0000-0001-6544-3468 information author Ramsey, Christopher Bronk
christopher.ramsey@arch.ox.ac.uk
https://orcid.org/0000-0002-8641-9309 information author Grootes, Pieter Meiert
pgrootes@leibniz.uni-kiel.de
https://orcid.org/0000-0003-4265-3168 information author Hughen, Konrad A
khughen@whoi.edu
https://orcid.org/0000-0003-3201-934X information author Kromer, Bernd
kr@uphys1.uphys.uni-heidelberg.de
author Reimer, Paula J https://orcid.org/0000-0001-9238-2146 information author Adkins, Jess F
jess@gps.caltech.edu
https://orcid.org/0000-0002-3174-5190 information author Burke, Andreas author Cook, Mea S
msc1@williams.edu
https://orcid.org/0000-0003-3786-6353 information author Olsen, Jesper https://orcid.org/0000-0002-4445-5520 information author Skinner, Luke C
lcs32@cam.ac.uk
https://orcid.org/0000-0002-5050-0244 information author documentDigital Radiocarbon 62(4) 779-820 References <gco:CharacterString>Aeolian-Derived Higher Plant Lipids in the Marine Sedimentary Record: Links with Palaeoclimate</gco:CharacterString> 1989-01-01 publication https://doi.org/10.1007/978-94-009-0995-3_18 Poynter, J G author Farrimond, Paul author Robinson, Nicole author Eglinton, Geoffrey author documentDigital In: Leinen, M, Sarnthein, M (eds.), Paleoclimatology and Paleometeorology: Modern and Past Patterns of Global Atmospheric Transport, Springer Netherlands, Dordrecht 435-462