干旱区生态环境知识资源中心(Arid): High Plains groundwater isotopic composition in northeastern New Mexico (USA): relationship to recharge and hydrogeologic setting

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DOI	10.1007/s10040-021-02329-9
	High Plains groundwater isotopic composition in northeastern New Mexico (USA): relationship to recharge and hydrogeologic setting
	Phan, Victoria A.; Zeigler, Kate E.; Vinson, David S.
通讯作者	Vinson, DS (corresponding author), Univ North Carolina Charlotte, Dept Geog & Earth Sci, 9201 Univ City Blvd, Charlotte, NC 28223 USA.
来源期刊	HYDROGEOLOGY JOURNAL
ISSN	1431-2174
EISSN	1435-0157
出版年	2021
卷号	29 期号:4 页码:1445-1461
英文摘要	In the High Plains (HP) region of northeastern New Mexico (NE NM), USA, underlying bedrock aquifers are utilized where the High Plains Aquifer is thin, absent, or unsaturated. These usage patterns, aquifer depletion, and increasing regional aridity imply that NE NM is a possible analogy for more easterly portions of the central HP. To examine the relationship between recharge, residence time, and hydrogeologic setting, 85 well and spring samples were analyzed for environmental tracers (delta D, delta O-18, delta C-13, and limited tritium and carbon-14 activities). Approximately half of the wells were open to strata of the Dakota Group. delta D was -105.0 to -41.7 parts per thousand (median -58.2 parts per thousand) and delta O-18 was -13.7 to -4.4 parts per thousand (median -8.1 parts per thousand). Overall, isotopic composition is correlated with elevation and influenced by hydrogeologic setting. Ten anomalously depleted waters, most near volcanic-capped mesas, may represent higher-elevation or winter-biased recharge, a different modern precipitation source, or recharge from a cooler climate. Recharge, estimated by chloride mass balance using groundwater chloride concentrations, averages 6 mm/year below 2,000-m elevation and 16 mm/year above 2,000 m. Tritium (nondetectable to 5.7 tritium units) and carbon-14 activities (modern carbon fraction 0.23-1.05) suggest that Holocene to modern waters occur, possibly as mixtures, and that alluvial channels and other surficial features promote recharge, likely at higher rates than regional averages. It is noteworthy that isotopically depleted waters in this study tended to be tritium-free. Additional residence time tracers and seasonal precipitation isotopic sampling could address recharge and the origin of depleted waters.
英文关键词	Stable isotopes Arid regions Recharge Aquifer depletion USA
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000637467600003
WOS关键词	CLIMATE-CHANGE ; OGALLALA AQUIFER ; PRECIPITATION ; GEOCHEMISTRY ; TRACERS ; BASIN ; WATER ; PALEORECHARGE ; RADIOCARBON ; DEPLETION
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Geology ; Water Resources
来源机构	New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350494
作者单位	[Phan, Victoria A.] New Mexico State Univ, Water Sci & Management Doctoral Program, Box 30003,MSC 3-I, Las Cruces, NM 88003 USA; [Phan, Victoria A.] New Mexico State Univ, Dept Anim & Range Sci, Box 30003,MSC 3-I, Las Cruces, NM 88003 USA; [Zeigler, Kate E.] Zeigler Geol Consulting LLC, Albuquerque, NM USA; [Vinson, David S.] Univ North Carolina Charlotte, Dept Geog & Earth Sci, 9201 Univ City Blvd, Charlotte, NC 28223 USA
推荐引用方式 GB/T 7714	Phan, Victoria A.,Zeigler, Kate E.,Vinson, David S.. High Plains groundwater isotopic composition in northeastern New Mexico (USA): relationship to recharge and hydrogeologic setting[J]. New Mexico State University,2021,29(4):1445-1461.
APA	Phan, Victoria A.,Zeigler, Kate E.,&Vinson, David S..(2021).High Plains groundwater isotopic composition in northeastern New Mexico (USA): relationship to recharge and hydrogeologic setting.HYDROGEOLOGY JOURNAL,29(4),1445-1461.
MLA	Phan, Victoria A.,et al."High Plains groundwater isotopic composition in northeastern New Mexico (USA): relationship to recharge and hydrogeologic setting".HYDROGEOLOGY JOURNAL 29.4(2021):1445-1461.