Geochemical data on silicon isotope and Ge/Si ratios along a global erodosequence

2026-06-10T06:42:02Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:71592021-08-25T14:24:31ZDOIDBDOIDB.GFZ

false4DOIDB.GFZ 10.5880/GFZ.3.3.2021.003 Frings, Patrick Patrick Frings 0000-0002-1012-0642 GFZ German Research Centre for Geosciences, Potsdam, Germany Oelze, Marcus Marcus Oelze 0000-0002-3950-6629 GFZ German Research Centre for Geosciences, Inorganic and Isotope Geochemistry, Potsdam, Germany Frick, Daniel A. Daniel A. Frick 0000-0002-8530-3064 GFZ German Research Centre for Geosciences, Potsdam, Germany von Blanckenburg, Friedhelm Friedhelm von Blanckenburg 0000-0002-2964-717X GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany Freie Universität Berlin, Institute of Geological Sciences, Berlin, Germany Geochemical data on silicon isotope and Ge/Si ratios along a global erodosequence GFZ Data Services 2021 silicon isotopes germanium EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > FORESTS EARTH SCIENCE > BIOSPHERE > VEGETATION > NUTRIENTS EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > EROSION EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > WEATHERING EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > CHEMICAL WEATHERING EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > DECOMPOSITION EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > MINERAL DISSOLUTION EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > CHEMICAL CONCENTRATIONS EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPE RATIOS EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPES EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > FLUVIAL PROCESSES > WEATHERING Frings, Patrick GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany HELGES – Helmholtz-Laboratory for the Geochemistry of the Earth Surface (GFZ German Research Centre for Geosciences, Germany) GFZ German Research Centre for Geosciences, Potsdam, Germany Frings, Patrick GFZ German Research Centre for Geosciences, Earth Surface Geochemistry, Potsdam, Germany Dataset 10.2475/08.2021.02 10.2475/08.2021.03 10.2475/08.2021.01 10.2475/08.2021.04 10.1016/j.chemgeo.2018.08.024 10.5194/bg-14-3111-2017 10.5880/GFZ.3.3.2021.001 GFFB10003 GFFB10009 GFFB1000B GFFB1000D GFFB1000F GFFB1000G GFFB1000H GFFB1000J GFFB1000U GFFB1000V GFFB1000W GFFB1000X GFFB1000Y GFFB1000Z GFFB10010 GFFB10018 GFFB10019 GFFB1001A GFFB1001B GFFB1001C GFFB1001D GFFB1001E GFFB1001N GFFB1001Q GFFB1001W GFFB1001X GFFB10021 GFFB10022 GFFB10023 GFFB10024 GFFB10025 GFFB10026 GFFB10027 GFFB1002G GFFB1002H GFFB1002J GFFB1002K GFFB1002L GFFB1002M GFFB1002N GFFB1002P GFFB1002Q GFFB1002R GFFB1002S GFFB1002T GFFB1002U GFFB1002V GFFB1002W GFFB1002X GFFB1002Y GFFB1002Z GFFB10030 GFFB10031 GFFB10036 GFFB1004G GFFB1004J GFFB1004K GFFB1004L GFFB1004M GFFB1004N GFFB1004P GFFB1004Q GFFB1004R GFFB1004S GFFB1004T GFFB1004U GFFB1004V GFFB1004W GFFB1004X GFFB1004Y GFFB1004Z GFFB10050 GFFB10051 GFFB10052 GFFB10053 GFFB10054 GFFB10055 GFFB10056 GFFB10057 GFFB10058 GFFB10059 GFFB1005A GFFB1005L GFFB1005N GFFB1005S GFFB1005T GFFB1005V GFFB1006V GFFB1006Z GFFB10077 GFFB1007A GFFB1007K GFFB1007M GFFB1007N GFFB1009C GFFB1009E GFFB1009H GFFB1009K GFFB1009L GFFB1009M GFFB1009N GFFB1009P GFFB1009Q GFFB1009R GFFB1009S GFFB1009T GFFB1009U GFFB1009V GFFB1009X GFFB1009Y GFFB1009Z GFFB100A0 GFFB100A3 GFFB100A4 10.5880/GFZ.3.3.2021.001 10.5880/fidgeo.2021.026 CC BY 4.0 We provide geochemical data for three sites that define a gradient of erosion rates – an “erodosequence”. These sites are the Swiss Central Alps, a rapidly-eroding post-glacial mountain belt; the Southern Sierra Nevada, USA, eroding at moderate rates; and the slowly-eroding tropical Highlands of central Sri Lanka.

Specifically, we provide silicon isotope ratios and germanium/silicon ratios and the major element composition of 1) rock, 2) saprolite, 3) soil, 4) plants, 5) river dissolved loads, 6) the soil and saprolite amorphous silica fraction (accessed with a NaOH leach), and 7) the soil and saprolite clay-size fraction (isolated with a differential settling protocol). These data serve two purposes. First, they allow us to improve understanding of the controls on silicon isotopes and germanium/silicon ratios in the 'Critical Zone'. Specifically, we can quantify the fractionation factors (for silicon isotopes) and the exchange coefficients (for germanium/silicon ratios), for secondary mineral precipitation and for biological uptake. Secondly, we can use mass-balance approaches to quantify the partitioning of silicon - a nutrient, and a major rock-forming element - among secondary minerals, plant material, and solutes.

All samples are assigned with International Geo Sample Numbers (IGSN), a globally unique and persistent Identifier for physical samples. The IGSNs are provided in the data tables and link to a comprehensive sample description.

This dataset consists of five tables:

S1. Analyses of soil, saprolite, and rock from the Swiss Alps study site
S2. Analyses of soil, saprolite, and rock from the Sierra Nevada study site
S3. Analyses of soil, saprolite, and rock from the Sri Lanka study site
S4. Analyses of stream water from the Swiss Alps, Sierra Nevada, and Sri Lanka study sites
S5. Analyses of plant material from the Swiss Alps, Sierra Nevada, and Sri Lanka study sites

Alps: central coordinate of the study area Sierra Nevada: central coordinate of the study area Sri Lanka: central coordinate of the study area Deutsche Forschungsgemeinschaft http://doi.org/10.13039/501100001659 SPP EarthShape