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Data
»
Soil Apatite Grain Weathering Metrics from Taylor Valley, Antarctica
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:
Column
Field delimiter:
,