noaa-ocean-10417 Pigmy Basin MD02-2553 Holocene Mineralogical and Geochemical Data Montero-Serrano, J.C.; Bout-Roumazeilles, V.; Sionneau, T.; Tribovillard, N.; Bory, A.; Flower, B.P.; Riboulleau, A.; Martinez, P.; Billy, I. Pigmy Basin MD02-2553 Holocene Mineralogical and Geochemical Data 2010-09-27 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/10417 Investigator J.C. Montero-Serrano Investigator V. Bout-Roumazeilles Investigator T. Sionneau Investigator N. Tribovillard Investigator A. Bory Investigator B.P. Flower Investigator A. Riboulleau Investigator P. Martinez Investigator I. Billy earth science paleoclimate paleoceanography manganese,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography potassium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography titanium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography gadolinium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography dysprosium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography chromium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography uranium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography titanium,sediment,null,count per second,null,paleoceanography,null,x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleoceanography neodymium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography vanadium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography illite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography chlorite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography potassium,sediment,null,count per second,null,paleoceanography,null,x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleoceanography ytterbium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography silicon,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography magnesium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography lanthanum,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography samarium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography europium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography holmium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography cobalt,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography grain size mode,sediment,null,micrometer,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography iron,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography sodium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography organic matter,sediment,null,percent,null,paleoceanography,null,loss on ignition,N,null earth science paleoclimate paleoceanography cerium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography thulium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography hafnium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography nickel,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography clay,sediment,null,percent,null,paleoceanography,null,null,N,< 2 mcm earth science paleoclimate paleoceanography silt,sediment,null,percent,null,paleoceanography,null,null,N,2-63 mcm earth science paleoclimate paleoceanography sand,sediment,null,percent,null,paleoceanography,null,null,N,> 63 mcm earth science paleoclimate paleoceanography praseodymium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography lutetium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography calcium carbonate,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography kaolinite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography erbium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography zirconium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography terbium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography thorium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography smectite,sediment,null,percent,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography mineral index,sediment,null,dimensionless,null,paleoceanography,null,null,N,smectite/(illite plus chlorite) earth science paleoclimate paleoceanography calcium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography aluminum,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography yttrium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography phosphorus,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography barium,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography zinc,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography copper,sediment,null,parts per million,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleocean geochemistry geoscientificInformation 9990 cal yr BP 140 cal yr BP Complete 27.1835 27.1835 -91.4167 -91.4167 -2259 -2259 Ocean Atlantic Ocean North Atlantic Ocean Gulf Of Mexico MD02-2553>LATITUDE 27.1835>LONGITUDE -91.4167 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Montero-Serrano, J.C., V. Bout-Roumazeilles, T. Sionneau, N. Tribovillard, A. Bory, B. Flower, A. Riboulleau, P. Martinez, and I. Billy. 2010. Changes in precipitation regimes over North America during the Holocene as recorded by mineralogy and geochemistry of Gulf of Mexico sediments. Global and Planetary Change, doi: 10.1016/j.gloplacha.2010.09.004.

Changes in terrigenous-transfer patterns from North America toward the Gulf of Mexico via the Mississippi River during the Holocene were investigated using mineralogical and geochemical records from the northern Gulf of Mexico (Pigmy Basin). Clay mineralogy (smectite/ illite+chlorite) and geochemical signatures (K and Ti intensities) indicate fluctuations in the detrital sedimentation during the Holocene in the Pigmy Basin. They likely reflect alternations between at least two dominant terrigenous sources: the smectite-rich NW Mississippi watershed, and the illite- and chlorite-rich Great Lakes province and NE Mississippi watershed. These recurring and rapid modifications of erosional processes over this period suggest changes in the hydrological regime via rainfall patterns. Such a modification during the Holocene is likely linked with the rapid atmospheric reorganization following the final collapse of the Laurentide Ice Sheet. Indeed, mineralogical and geochemical proxies indicate east-to-west migrations of the main detrital source (from the Great Lakes and north-eastern province toward the north-western province) associated with Mississippi River megaflood episodes. These modifications of the main detrital sources likely record migrations of the precipitation belt, which are constrained by atmospheric configuration (Jet Stream, Bermuda High and Intertropical Convergence Zone position) and subtropical oceanic hydrological properties (meridional extension of the Atlantic Warm Pool).In the frame of previously published rainfall patterns over the Caribbean and North America, our results highlight some marked modifications of moisture transfer throughout the Holocene. These changes are interpreted as resulting from two atmospheric configurations that have driven alternately the precipitation distribution over North America for the last 10 ka with an apparent cyclicity of ~2.5 ka. The coherent common cyclicity between Gulf of Mexico detrital parameters and Greenland atmospheric proxies over the Holocene suggests that the initial external forcing was rapidly transferred latitudinally through atmospheric processes. STUDY NOTES: High-resolution Holocene mineralogical and geochemical data from core MD02-2553, Pigmy Basin, northern Gulf of Mexico, analyzed for Holocene sediment sourcing in the Mississippi River drainage. The Holocene section of the core MD02-2553 (the upper 359 cm) was studied at high resolution (average sample resolution of ~47 yr) for clay mineralogy and grain size. Inorganic geochemistry was studied for some major elements (K and Ti) at 1 cm resolution (average sample resolution of ~28 yr) using the XRF core scanner. Complementarily, trace and rare earth element (REE) concentrations were determined at lower resolutions, with average sample resolution of 555 yr.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/montero-serrano2010/montero-serrano2010.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/montero-serrano2010/montero-serrano2010.xls USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11