de.pangaea.dataset770435 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2026-05-01T03:35:43Z https://doi.pangaea.de/10.1594/PANGAEA.770435 1999-01-01 publication https://doi.org/10.1594/PANGAEA.770435 Krijgsman, Wout https://orcid.org/0000-0002-1472-1074 information author Hilgen, Frederik J author Raffi, Isabella https://orcid.org/0000-0002-5192-7477 information author Sierro, Francisco Javier

sierro@usal.es

https://orcid.org/0000-0002-8647-456X information author Wilson, Douglas S

wilson@rapa.geol.ucsb.edu

author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Supplement to: Krijgsman, Wout; Hilgen, Frederik J; Raffi, Isabella; Sierro, Francisco Javier; Wilson, Douglas S (1999): Chronology, causes and progression of the Messinian salinity crisis. Nature, 400(6745), 652-655, https://doi.org/10.1038/23231 The Messinian salinity crisis is widely regarded as one of the most dramatic episodes of oceanic change of the past 20 or so million years (Hsü et al., 1973, doi:10.1038/242240a0; Ryan et al., 1973, doi:10.2973/dsdp.proc.13.1973; Hilgen et al., 1995, doi:10.1016/0012-821X(95)00207-S). Earliest explanations were that extremely thick evaporites were deposited in a deep and desiccated Mediterranean basin that had been repeatedly isolated from the Atlantic Ocean (Ryan et al., 1973, doi:10.2973/dsdp.proc.13.1973; Hilgen et al., 1995, doi:10.1016/0012-821X(95)00207-S), but elucidation of the causes of the isolation - whether driven largely by glacio-eustatic or tectonic processes - have been hampered by the absence of an accurate time frame. Here we present an astronomically calibrated chronology for the Mediterranean Messinian age based on an integrated high-resolution stratigraphy and 'tuning' of sedimentary cycle patterns to variations in the Earth's orbital parameters. We show that the onset of the Messinian salinity crisis is synchronous over the entire Mediterranean basin, dated at 5.96 +/- 0.02 million years ago. Isolation from the Atlantic Ocean was established between 5.59 and 5.33 million years ago, causing a large fall in Mediterranean water level followed by erosion (5.59-5.50 million years ago) and deposition (5.50–5.33 million years ago) of non-marine sediments in a large 'Lago Mare' (Lake Sea) basin. Cyclic evaporite deposition is almost entirely related to circum-Mediterranean climate changes driven by changes in the Earth's precession, and not to obliquity-induced glacio-eustatic sea-level changes. We argue in favour of a dominantly tectonic origin for the Messinian salinity crisis, although its exact timing may well have been controlled by the ~400-kyr component of the Earth's eccentricity cycle. completed Krijgsman, Wout https://orcid.org/0000-0002-1472-1074 information principalInvestigator ODP Ocean Drilling Program theme 1995-01-01 creation PANGAEA

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https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-3.0: Creative Commons Attribution 3.0 Unported textTable und geoscientificInformation -109.7514 -109.7514 7.21101 7.21101 1991-06-25T11:35:00 1991-06-25T21:25:00 32.67 48.25 Ageprofile Datum Description thematicClassification Age model physicalMeasurement derived of ODP Site 154-926 ka ka DEPTH, sediment/rock physicalMeasurement mbsf m m Chronozone thematicClassification Depth, composite physicalMeasurement mcd mcd Age model, optional physicalMeasurement interpolated age ka ka text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.770435?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: 138-853B * LATITUDE: 7.211010 * LONGITUDE: -109.751400 * DATE/TIME START: 1991-06-25T11:35:00 * DATE/TIME END: 1991-06-25T21:25:00 * ELEVATION: -3715.5 m * PENETRATION: 72.4 m * RECOVERY: 77.68 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg138 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 9 cores; 72.4 m cored; 0 m drilled; 107.3 % recovery 1991-06-25T11:35:00