Hydrogeochemistry of the Caribou-Poker Creeks Research Watershed
Bedrock of the Caribou-Poker Creeks Research Watershed dissolves incongruently with a first-order rate constant of about 5 x 10-6 day-1 at 5° C. The resulting solution is potassium-calcium-magnesium rich. The soil-plant environment acts on this solution through sorption of potassium and by evapotran...
Main Authors: | , |
---|---|
Format: | Report |
Language: | unknown |
Published: |
University of Alaska, Institute of Water Resources
1982
|
Subjects: | |
Online Access: | http://hdl.handle.net/11122/1459 |
id |
ftunivalaska:oai:scholarworks.alaska.edu:11122/1459 |
---|---|
record_format |
openpolar |
spelling |
ftunivalaska:oai:scholarworks.alaska.edu:11122/1459 2024-09-15T18:01:46+00:00 Hydrogeochemistry of the Caribou-Poker Creeks Research Watershed Hawkins, Daniel B. Glover, David M. 1982-03 http://hdl.handle.net/11122/1459 unknown University of Alaska, Institute of Water Resources IWR;no. 102 http://hdl.handle.net/11122/1459 chemical composition bedrock dissolution Technical Report 1982 ftunivalaska 2024-08-12T03:04:02Z Bedrock of the Caribou-Poker Creeks Research Watershed dissolves incongruently with a first-order rate constant of about 5 x 10-6 day-1 at 5° C. The resulting solution is potassium-calcium-magnesium rich. The soil-plant environment acts on this solution through sorption of potassium and by evapotranspiration to yield a solution that is relatively depleted in potassium and enriched in calcium and magnesium, but with the same molar ratio of Ca:Mg as the fluid from the rock dissolution. This fluid from the soil-plant reservoir is the dominant contributor of ions to stream waters. Using the discriminant functions obtained by multiple discriminant analysis DPKR = 0.572Si02 + 0.240Ca + 2.89Mg - 0.384Na + 0.452N03 - 9.18 DCRB = 0.913Si02 + 0.042Ca + 1.28Mg + 1.17Na + 4.63N03 - 7.27, the waters of Caribou Creek and Poker Creek can be distinguished on the basis of chemical composition. In general, Poker Creek waters are slightly more concentrated than Caribou Creek waters. On the average, 1.4 x 10^13g H20/year leaves the watershed as surface water. At an average calcium concentration of 14 ppm for the water, 0.1% for the bedrock, and a watershed area of 46 mi^2, this flow corresponds to a maximum loss of about 17 metric tons of rock per hectare per year. Report Caribou-Poker Creeks Research Watershed University of Alaska: ScholarWorks@UA |
institution |
Open Polar |
collection |
University of Alaska: ScholarWorks@UA |
op_collection_id |
ftunivalaska |
language |
unknown |
topic |
chemical composition bedrock dissolution |
spellingShingle |
chemical composition bedrock dissolution Hawkins, Daniel B. Glover, David M. Hydrogeochemistry of the Caribou-Poker Creeks Research Watershed |
topic_facet |
chemical composition bedrock dissolution |
description |
Bedrock of the Caribou-Poker Creeks Research Watershed dissolves incongruently with a first-order rate constant of about 5 x 10-6 day-1 at 5° C. The resulting solution is potassium-calcium-magnesium rich. The soil-plant environment acts on this solution through sorption of potassium and by evapotranspiration to yield a solution that is relatively depleted in potassium and enriched in calcium and magnesium, but with the same molar ratio of Ca:Mg as the fluid from the rock dissolution. This fluid from the soil-plant reservoir is the dominant contributor of ions to stream waters. Using the discriminant functions obtained by multiple discriminant analysis DPKR = 0.572Si02 + 0.240Ca + 2.89Mg - 0.384Na + 0.452N03 - 9.18 DCRB = 0.913Si02 + 0.042Ca + 1.28Mg + 1.17Na + 4.63N03 - 7.27, the waters of Caribou Creek and Poker Creek can be distinguished on the basis of chemical composition. In general, Poker Creek waters are slightly more concentrated than Caribou Creek waters. On the average, 1.4 x 10^13g H20/year leaves the watershed as surface water. At an average calcium concentration of 14 ppm for the water, 0.1% for the bedrock, and a watershed area of 46 mi^2, this flow corresponds to a maximum loss of about 17 metric tons of rock per hectare per year. |
format |
Report |
author |
Hawkins, Daniel B. Glover, David M. |
author_facet |
Hawkins, Daniel B. Glover, David M. |
author_sort |
Hawkins, Daniel B. |
title |
Hydrogeochemistry of the Caribou-Poker Creeks Research Watershed |
title_short |
Hydrogeochemistry of the Caribou-Poker Creeks Research Watershed |
title_full |
Hydrogeochemistry of the Caribou-Poker Creeks Research Watershed |
title_fullStr |
Hydrogeochemistry of the Caribou-Poker Creeks Research Watershed |
title_full_unstemmed |
Hydrogeochemistry of the Caribou-Poker Creeks Research Watershed |
title_sort |
hydrogeochemistry of the caribou-poker creeks research watershed |
publisher |
University of Alaska, Institute of Water Resources |
publishDate |
1982 |
url |
http://hdl.handle.net/11122/1459 |
genre |
Caribou-Poker Creeks Research Watershed |
genre_facet |
Caribou-Poker Creeks Research Watershed |
op_relation |
IWR;no. 102 http://hdl.handle.net/11122/1459 |
_version_ |
1810438849020559360 |