التفاصيل البيبلوغرافية
| العنوان: |
Suspended sediment collected from Puente La Valle (PLV, -25.655°S, -60.130°W) between 2016 - 2018 |
| المؤلفون: |
Golombek, Nina, Scheingross, Joel S, Repasch, Marisa N, Hovius, Niels, Sachse, Dirk, Lupker, Maarten, Eglinton, Timothy Ian, Menges, Johanna, Haghipour, Negar, Poulson, Simon R, Gröcke, Darren R, Latosinski, Francisco G, Szupiany, Ricardo N |
| بيانات النشر: |
PANGAEA |
| سنة النشر: |
2021 |
| المجموعة: |
PANGAEA - Data Publisher for Earth & Environmental Science (AWI Bremerhaven / MARUM Bremen) |
| مصطلحات موضوعية: |
biogeochemistry, Bucket, plastic, Calculated, Carbon, organic, total, organic/Nitrogen, total ratio, DATE/TIME, Element analyser (EA), Element analyser isotope ratio mass spectrometer (EA-IRMS), Element analyzer coupled to an accelerator mass spectrometer (EA-AMS), Event label, Fraction modern carbon, Latitude of event, Longitude of event, meandering river, Median, grain size, Nitrogen, total/Carbon, organic ratio, organic carbon (OC), Particle size analyser (Retsch/Horiba LA-950V2), PLV_01042016, PLV_01062016, PLV_01062017, PLV_01122017, PLV_02012018 |
| جغرافية الموضوع: |
MEDIAN LATITUDE: -25.654888 * MEDIAN LONGITUDE: -60.129914 * SOUTH-BOUND LATITUDE: -25.655000 * WEST-BOUND LONGITUDE: -60.130000 * NORTH-BOUND LATITUDE: -25.653461 * EAST-BOUND LONGITUDE: -60.128814 * DATE/TIME START: 2016-03-18T00:00:00 * DATE/TIME END: 2018-02-21T00:00:00 |
| الوصف: |
These data were collected from the Río Bermejo in northern Argentina. To determine the seasonal variability in the particulate organic carbon composition of exported river sediment, we collected weekly suspended sediment samples (March 2016 to March 2018) at the Puente Lavalle (PLV) monitoring site, ~870 river km downstream of the mountain front (-25.655°S, -60.130°W). Surface water samples were collected from a bridge using a river-rinsed bucket and were filtered through a 0.22 µm polyethersulfone membrane. Samples were stored on site at ambient temperatures for up to one year, transferred to Germany and subsequently stored at ~4°C until processing. Suspended sediment was rinsed from filters into pre-combusted glass evaporating dishes using ultra-pure (18.2 M) water, oven-dried at 40°C for >48 hr, and homogenized in an agate mortar without crushing. Geochemical and grain size analyses required 0.8 g sediment; for samples <0.8 g, we combined consecutive weekly samples to create a new bulk sample of >0.8 g (Table S1). We split sediment samples into aliquots for grain size analysis via laser diffraction and geochemical analyses. Sediment particle size distributions were measured on ~0.2 g aliquots using a laser diffraction particle size analyzer (Retsch/Horiba LA-950V2). Aliquots for geochemical analyses were ground to <63 µm. The homogenized suspended sediment, bedrock, soil and leaf litter aliquots were further split for total nitrogen measurement (TN, wt%) and organic carbon analyses including total organic carbon (TOC, wt%), stable carbon isotope composition (δ13COC), and radiocarbon fraction modern (Fm). We decarbonated the aliquots for POC measurements using a liquid HCl leach following Galy et al., (2007). TOC and TN measurements were split between facilities at the German Research Centre for Geosciences (GFZ), Durham University, and University of Nevada Reno (UNR) using an elemental analyzer (EA). δ13COC was measured with a coupled EA-isotope ratio mass spectrometer (EA-IRMS). All isotopic ... |
| نوع الوثيقة: |
dataset |
| وصف الملف: |
text/tab-separated-values, 696 data points |
| اللغة: |
English |
| Relation: |
https://doi.org/10.1594/PANGAEA.932558; Golombek, Nina; Scheingross, Joel S; Repasch, Marisa N; Hovius, Niels; Menges, Johanna; Sachse, Dirk; Lupker, Maarten; Eglinton, Timothy Ian; Haghipour, Negar; Poulson, Simon R; Gröcke, Darren R; Latosinski, Francisco G; Szupiany, Ricardo N (2021): Fluvial Organic Carbon Composition Regulated by Seasonal Variability in Lowland River Migration and Water Discharge. Geophysical Research Letters, 48(24), e2021GL093416, https://doi.org/10.1029/2021GL093416; https://doi.pangaea.de/10.1594/PANGAEA.932545; https://doi.org/10.1594/PANGAEA.932545 |
| DOI: |
10.1594/PANGAEA.932545 |
| الاتاحة: |
https://doi.pangaea.de/10.1594/PANGAEA.932545
https://doi.org/10.1594/PANGAEA.932545 |
| Rights: |
CC-BY-4.0: Creative Commons Attribution 4.0 International ; Access constraints: unrestricted ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edsbas.77370109 |
| قاعدة البيانات: |
BASE |