# Cerro Tuzgle Peatland, Argentina 2100 Year XRF, Isotope, and Pollen Data #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 2.0 # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/20352 # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/southamerica/argentina/tuzgle2016pollen.txt # # Original_Source_URL: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Paleolimnology # # Parameter_Keywords: geochemistry, population abundance, carbon isotopes #-------------------- # Contribution_Date # Date: 2016-07-27 #-------------------- # Title # Study_Name: Cerro Tuzgle Peatland, Argentina 2100 Year XRF, Isotope, and Pollen Data #-------------------- # Investigators # Investigators: Schittek, K.; Kock, S.T.; Lucke, A.; Hense, J.; Ohlendorf, C.; Kulemeyer, J.J.; Lupo, L.C.; Schabitz, F. #-------------------- # Description_and_Notes # Description: Geochemical and stable isotope (d13C and d15N) data from the Cerro Tuzgle Peatland (CTP), Argentina for the past 2100 years. # # Provided Keywords: geochemistry, stable isotopes, pollen, macrofossils # #-------------------- # Publication # Authors: Karsten Schittek, Sebastian T. Kock, Andreas Lucke, Jonathan Hense, Christian Ohlendorf, Julio J. Kulemeyer, Liliana C. Lupo, and Frank Schabitz # Published_Date_or_Year: 2016-05-13 # Published_Title: A high-altitude peatland record of environmental changes in the NW Argentine Andes (24S) over the last 2100 years # Journal_Name: Climate of the Past # Volume: 12 # Edition: # Issue: 5 # Pages: 1165-1180 # Report_Number: # DOI: 10.5194/cp-12-1165-2016 # Online_Resource: http://www.clim-past.net/12/1165/2016/ # Full_Citation: # Abstract: High-altitude cushion peatlands are versatile archives for high-resolution palaeoenvironmental studies, due to their high accumulation rates, range of proxies, and sensitivity to climatic and/or human-induced changes. Especially within the Central Andes, the knowledge about climate conditions during the Holocene is limited. In this study, we present the environmental and climatic history for the last 2100 years of Cerro Tuzgle peatland (CTP), located in the dry Puna of NW Argentina, based on a multi-proxy approach. X-ray fluorescence (XRF), stable isotope and element content analyses (d13C, d15N, TN and TOC) were conducted to analyse the inorganic geochemistry throughout the sequence, revealing changes in the peatlands' past redox conditions. Pollen assemblages give an insight into substantial environmental changes on a regional scale. The palaeoclimate varied significantly during the last 2100 years. The results reflect prominent late Holocene climate anomalies and provide evidence that in situ moisture changes were coupled to the migration of the Intertropical Convergence Zone (ITCZ). A period of sustained dry conditions prevailed from around 150 BC to around AD 150. A more humid phase dominated between AD 200 and AD 550. Afterwards, the climate was characterised by changes between drier and wetter conditions, with droughts at around AD 650-800 and AD  1000-1100. Volcanic forcing at the beginning of the 19th century (1815 Tambora eruption) seems to have had an impact on climatic settings in the Central Andes. In the past, the peatland recovered from climatic perturbations. Today, CTP is heavily degraded by human interventions, and the peat deposit is becoming increasingly susceptible to erosion and incision. #------------------ # Funding_Agency # Funding_Agency_Name: Deutsche Forschungsgemeinschaft (DFG) # Grant: SCHA 14-1/2 #------------------ # Funding_Agency # Funding_Agency_Name: Bundesministerium für Bildung und Forschung (BMBF) # Grant: ARG 06/009 #------------------ # Site_Information # Site_Name: Cerro Tuzgle Peatland # Location: South America>Argentina # Country: Argentina # Northernmost_Latitude: -24.15 # Southernmost_Latitude: -24.15 # Easternmost_Longitude: -66.4 # Westernmost_Longitude: -66.4 # Elevation: 4350 m #------------------ # Data_Collection # Collection_Name: Tuz694pollen # Earliest_Year: 2043 # Most_Recent_Year: -43 # Time_Unit: Cal. Year BP # Core_Length: 2.01 m # Notes: #------------------ # Chronology_Information # Chronology: # Chronology: Table 1. Radiocarbon ages of core Tuz 694 of Cerro Tuzgle peatland. # # The calibrated age ranges were calculated using CALIB 7.0.4 and the IntCal13 data set (Reimer et al., 2013). # The modelled ages are the result of a probabilistic age-depth model using MCAgeDepth (Higuera et al., 2009). # The range represents the 2 sigma values, and the median ages are in parentheses. # # Lab # core depth compacted depth measured 14C measured error (+/-) 2 sigma calibrated age MCAgeDepth modelled age # (cm) (cm) (cal yr BP) (cal yr BP) # Poz-56032 37.5 50.5 600 35 541-(603)-654 541-(602)-654 # Poz-56034 77.5 82.5 1095 30 938-(1001)-1060 941-(1000)-106 # Poz-56035 103.5 152.5 1245 25 1082-(1211)-1268 1084-(1210)-1264 # Poz-66440 144.5 172.5 1620 30 1412-(1514)-1591 1419-(1514)-1588 # Poz-56036 160.5 180.5 1715 30 1557-(1620)-1700 1558-(1619)-1700 # Poz-66442 187.5 193.5 1960 30 1830-(1911)-1988 1836-(1910)-1984 #---------------- # Variables # # Data variables follow are preceded by "##" in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ## depth_cm depth, , , cm, , , , ,N ## age_calBP age, , , calendar years before present, , , , ,N ## poaceae% Poaceae, , , percent, , pollen, , ,N ## asteraSen% Senecio-type Asteraceae, , , percent, , pollen, , ,N ## apiaceae% Apiaceae, , , percent, , pollen, , ,N ## bromelia% Bromeliaceae, , , percent, , pollen, , ,N ## caryophyl% Caryophyllaceae, , , percent, , pollen, , ,N ## perezia% Perezia, , , percent, , pollen, , ,N ## chenopod% Chenopodiaceae, , , percent, , pollen, , ,N ## ephedra% Ephedra, , , percent, , pollen, , ,N ## cyperaceae% Cyperaceae, , , percent, , pollen, excluded from the pollen sum, ,N ## hypochaeris% Hypochaeris, , , percent, , pollen, excluded from the pollen sum, ,N ## gentianac% Gentianaceae, , , percent, , pollen, excluded from the pollen sum, ,N ## plantago% Plantago undiff., , , percent, , pollen, excluded from the pollen sum, ,N ## pediast-flx Pediastrum flux, , , n/cm2/yr, , pollen, , ,N ## RVV-69-flx RVV-69 flux, , , n/cm2/yr, , pollen, , ,N ## IBB-15-flx IBB-15 flux, , , n/cm2/yr, , pollen, , ,N ## arcella-flx Arcella flux, , , n/cm2/yr, , pollen, , ,N ## char<112-flx charred particles <112 um flux, , , n/cm2/yr, , pollen, , ,N ## char>125-flx charred particles >125 um flux, , , n/cm2/yr, , pollen, , ,N ## oxyseed-flx Oxychloe seeds flux, , , n/cm2/yr, , pollen, , ,N ## Neoregg-flx Neorhabdocoel egg capsules flux, , , n/cm2/yr, , pollen, , ,N ## Chiron-flx Chironomidae undiff. flux, , , n/cm2/yr, , pollen, , ,N ## Oribat-flx Oribatid mites undiff. flux, , , n/cm2/yr, , pollen, , ,N # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: -999 # depth_cm age_calBP poaceae% asteraSen% apiaceae% bromelia% caryophyl% perezia% chenopod% ephedra% cyperaceae% hypochaeris% gentianac% plantago% pediast-flx RVV-69-flx IBB-15-flx arcella-flx char<112-flx char>125-flx oxyseed-flx Neoregg-flx Chiron-flx Oribat-flx 1 -43 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 0.13 0.04 0 0 0 5 33 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 0.09 0.13 1.2 0.82 0.04 6.5 54 80.65 14.52 0 0 0 0 0 0 58.17 0.65 0.65 0 11.05 110.54 22.11 342.68 464.28 0.09 0.09 0.3 1.16 0.17 16.4 233.18 78.13 10.94 1.56 4.69 0 0 3.13 0 1.47 2.94 1.47 0 42.54 0 4.48 100.75 143.29 0.15 0.03 0.15 0 0.32 26.4 409.18 52.63 5.26 4.21 6.32 1.05 1.05 24.21 0 12.17 0.87 0.87 3.48 887.32 51.44 6.43 141.46 250.76 0.07 0.07 0.15 0.48 0.15 36.4 568.88 28.57 42.86 0 0 0 0 0 0 0 0 0 0 58.51 509.87 83.59 0 91.94 0 0.04 0.04 0.45 0.27 46.3 702.45 54.55 18.18 0 0 0 0 9.09 9.09 18.75 0 6.25 6.25 25.11 301.35 100.45 414.35 351.57 0.14 0 0.29 0.62 0.24 56.3 814.88 72.46 14.49 0 0 0 1.45 8.7 2.9 22.22 0 0 1.11 61.15 67.27 42.81 391.38 458.65 0.14 0.09 0.05 0.28 0.18 66.3 910.82 65.31 12.24 4.08 4.08 0 0 12.24 2.04 5.26 3.51 0 3.51 6.67 373.69 220.21 313.63 373.69 0 0 0.28 0 0.07 76.2 995.58 57.14 14.29 0 0 0 0 28.57 0 12.5 0 0 0 45.51 75.85 15.17 75.85 197.21 0 0 0.99 0.16 0.08 86.9 1081.86 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 0.09 1.75 0.88 0.35 0.18 93.6 1134.02 74.6 4.76 0 0 1.59 1.59 4.76 0 5.88 1.47 0 0 141.82 78.25 9.78 97.81 293.42 0.07 0 0.5 0.14 0.07 101 1190.1 91.74 4.59 0 0 0 0 1.83 0.92 17.29 0 0.75 0 517.03 766.63 0 160.46 837.94 0.89 0.64 1.53 2.17 0.38 115.3 1294.64 83.33 3.33 1.67 0 0 0 10 0 7.58 0 0 1.52 818.91 250.96 79.25 409.46 607.58 0.42 0.42 1.53 0.98 0.7 131.6 1410.85 62.96 24.07 0 0 0 1.85 1.85 5.56 8.24 20 4.71 3.53 0 1377.01 25.98 909.35 3611.42 1.99 0 0.31 0.15 0 147.9 1528.67 90.91 1.82 0 0 0 0 3.64 0 9.68 1.61 0 0 33.05 22.03 0 242.35 638.92 1.79 0 0.69 0 0 164.3 1662.38 88.57 2.86 1.9 0 1.9 0 2.86 0 3.54 0 0.88 2.65 62.18 248.72 62.18 87.05 2474.75 3.85 0 0.28 0.21 0 180.6 1832.52 91.74 4.59 0 0 0 0 3.67 0 0 0 0.91 0 0 95.24 238.1 333.34 1333.36 3.78 0 1.12 0.43 0.34 196.9 2043.66 88.68 3.77 0 0 0 0 7.55 0 7.02 0 0 0 6.18 284.11 6.18 314.99 2532.29 1.8 0 0.5 1.22 0.14