Origin and structures of groundwater humic substances from three Danish aquifers

C. Grøn; L. Wassenaar; M. Krog

doi:10.1016/0160-4120(96)00056-6

Origin and structures of groundwater humic substances from three Danish aquifers

C. Grøn, L. Wassenaar, M. Krog

Research output: Contribution to journal › Conference article › Research

Abstract

Structural, chemical, and isotopic parameters were used to identify the origins of groundwater humic substances from three Danish aquifers. A variety of analytical techniques (visible light absorption, molecular weight distribution, C-13-NMR spectroscopy, elemental composition with major elements and halogens, hydrolyzable amino acids and carbohydrates, carbon isotopes) applied to aquatic humic and fulvic acids led to consistent structural interpretations for each of the three aquifers studied. For humic substances in two-aquifers, the analyses suggested source rocks in agreement with geological and hydrogeochemical information. In a third aquifer, source rock identification was inconclusive, and multiple fossil and recent organic carbon sources are suggested.

Original language	English
Journal	Environment International
Volume	22
Issue number	5
Pages (from-to)	519-534
ISSN	0160-4120
DOIs	https://doi.org/10.1016/0160-4120(96)00056-6
Publication status	Published - 1996
Event	5th Nordic Symposium on Humic Substances in Soil and Water - Lund, Sweden Duration: 6 Jun 1995 → 8 Jun 1995 Conference number: 5

Conference

Conference	5th Nordic Symposium on Humic Substances in Soil and Water
Number	5
Country	Sweden
City	Lund
Period	06/06/1995 → 08/06/1995

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title = "Origin and structures of groundwater humic substances from three Danish aquifers",

abstract = "Structural, chemical, and isotopic parameters were used to identify the origins of groundwater humic substances from three Danish aquifers. A variety of analytical techniques (visible light absorption, molecular weight distribution, C-13-NMR spectroscopy, elemental composition with major elements and halogens, hydrolyzable amino acids and carbohydrates, carbon isotopes) applied to aquatic humic and fulvic acids led to consistent structural interpretations for each of the three aquifers studied. For humic substances in two-aquifers, the analyses suggested source rocks in agreement with geological and hydrogeochemical information. In a third aquifer, source rock identification was inconclusive, and multiple fossil and recent organic carbon sources are suggested. ",

keywords = "Processer og stofkredsl{\o}b i {\o}kosystemer; Planteproduktion og stofoms{\ae}tning",

author = "C. Gr{\o}n and L. Wassenaar and M. Krog",

year = "1996",

doi = "10.1016/0160-4120(96)00056-6",

language = "English",

volume = "22",

pages = "519--534",

journal = "Environment International",

issn = "0160-4120",

publisher = "Pergamon Press",

number = "5",

note = "5th Nordic Symposium on Humic Substances in Soil and Water ; Conference date: 06-06-1995 Through 08-06-1995",

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TY - GEN

T1 - Origin and structures of groundwater humic substances from three Danish aquifers

AU - Grøn, C.

AU - Wassenaar, L.

AU - Krog, M.

N1 - Conference code: 5

PY - 1996

Y1 - 1996

N2 - Structural, chemical, and isotopic parameters were used to identify the origins of groundwater humic substances from three Danish aquifers. A variety of analytical techniques (visible light absorption, molecular weight distribution, C-13-NMR spectroscopy, elemental composition with major elements and halogens, hydrolyzable amino acids and carbohydrates, carbon isotopes) applied to aquatic humic and fulvic acids led to consistent structural interpretations for each of the three aquifers studied. For humic substances in two-aquifers, the analyses suggested source rocks in agreement with geological and hydrogeochemical information. In a third aquifer, source rock identification was inconclusive, and multiple fossil and recent organic carbon sources are suggested.

AB - Structural, chemical, and isotopic parameters were used to identify the origins of groundwater humic substances from three Danish aquifers. A variety of analytical techniques (visible light absorption, molecular weight distribution, C-13-NMR spectroscopy, elemental composition with major elements and halogens, hydrolyzable amino acids and carbohydrates, carbon isotopes) applied to aquatic humic and fulvic acids led to consistent structural interpretations for each of the three aquifers studied. For humic substances in two-aquifers, the analyses suggested source rocks in agreement with geological and hydrogeochemical information. In a third aquifer, source rock identification was inconclusive, and multiple fossil and recent organic carbon sources are suggested.

KW - Processer og stofkredsløb i økosystemer; Planteproduktion og stofomsætning

U2 - 10.1016/0160-4120(96)00056-6

DO - 10.1016/0160-4120(96)00056-6

M3 - Conference article

VL - 22

SP - 519

EP - 534

JO - Environment International

JF - Environment International

SN - 0160-4120

IS - 5

T2 - 5th Nordic Symposium on Humic Substances in Soil and Water

Y2 - 6 June 1995 through 8 June 1995

ER -