SOILS_APATITE

File: 

SOILS_APATITE.csv (44.97 KB)

...or query the dataset by variables and dates of interest:

Variables
´╗┐DATASET_CODE
  • Label: Dataset code
  • Definition: ´╗┐DATASET_CODE
  • Type: Nominal
  • Missing values: None specified
BASIN
  • Label: Basin
  • Definition: Identifies the region where the sample was collected; either Fryxell Basin or Bonney Basin
  • Type: Nominal
  • Missing values: None specified
MOISTURE_LEVEL
  • Label: Soil Moisture Level
  • Definition: Identifies the moisture level of the soil sample; either dry or saturated. Dry samples are from outside of stream channels, while saturated samples are from the hyporheic zone.
  • Type: Nominal
  • Missing values: None specified
SAMPLE_ID
  • Label: Sample ID
  • Definition: Unique sample identifier. LB=Lake Bonney; LF=Lake Fryxell; D=dry; W=wet
  • Type: Nominal
  • Missing values: None specified
LATITUDE
  • Label: Latitude
  • Definition: Latitude in decimal degrees.
  • Type: Nominal
  • Missing values: None specified
LONGITUDE
  • Label: Longitude
  • Definition: Longitude in decimal degrees.
  • Type: Nominal
  • Missing values: None specified
GRAIN_ID
  • Label: Grain ID
  • Definition: Unique grain identifier. P=phosphorus. We separated more than 50 apatite grains from each sample.
  • Type: Nominal
  • Missing values: None specified
PITTING_INDEX
  • Label: Pitting Index
  • Definition: A qualitative index of how chemically altered the apatite grain was. Our pitting index ranges from 1 (grains with few to no etch pits) to 4 (grains with etch pits covering the entire grain surface).
  • Type: Nominal
  • Missing values: None specified
ASPECT_RATIO
  • Label: Aspect Ratio
  • Definition: The length of the long axis of the grain divided by the length of the short axis, giving a measure of how elongated grains are. An aspect ratio of 1 is a perfectly round grain.
  • Type: Nominal
  • Missing values: None specified
PERCENT_CRYSTAL_FACES
  • Label: Percent Crystal Faces
  • Definition: The percent of the total visible grain area that was a recognizable crystal face.
  • Type: Nominal
  • Missing values: None specified
Data Source Details

Header lines: 

1

Orientation: 

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Field delimiter: 

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