noaa-lake-13074
Lone Spruce Pond, Alaska 14,500 Year Multiproxy Sediment Data
Kaufman, D.S.; Axford, Y.; Anderson, R.S.; Lamoureux, S.F.; Schindler, D.E.; Walker, I.R.; Werner, A.
Lone Spruce Pond, Alaska 14,500 Year Multiproxy Sediment Data
2012-06-30
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/13074
Investigator
D.S.
Kaufman
Investigator
Y.
Axford
Investigator
R.S.
Anderson
Investigator
S.F.
Lamoureux
Investigator
D.E.
Schindler
Investigator
I.R.
Walker
Investigator
A.
Werner
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Parakiefferiella nigra
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Microtendipes sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Pagastiella sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Tanytarsus chinyensis
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,unspecified midge
earth science
paleoclimate
insect|paleolimnology
age,null,null,calendar year before present,null,insect|paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
organic matter,sediment,null,percent,null,paleolimnology,null,loss on ignition,N,550 degrees for 5 hours
earth science
paleoclimate
paleolimnology
clay,sediment,null,percent,null,paleolimnology,null,laser particle size analysis,N,null
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Chaoborus americanus
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Heterotrissocladius sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Limnophyes sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Metriocnemus sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Zalutschia type B
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Stichtochironomus sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Corynocera ambigua
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Micropsectra sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Tanytarsina
earth science
paleoclimate
insect|paleolimnology
depth,null,null,centimeter,null,insect|paleolimnology,corrected,null,N,corrected for tephra layers
earth science
paleoclimate
paleolimnology
sand,sediment,null,percent,null,paleolimnology,null,laser particle size analysis,N,null
earth science
paleoclimate
paleolimnology
nitrogen,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Cricotopus/Orthocladius
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Zalutschia type A
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Procladius sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Pentaneurini
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Glyptotendipes sp.
earth science
paleoclimate
paleolimnology
volume magnetic susceptibility,sediment,null,dimensionless (SI system),null,paleolimnology,null,magnetic susceptibility measurement with point or surface sensor,N,null
earth science
paleoclimate
paleolimnology
density,sediment,null,gram per cubic centimeter,null,paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
grain size median,sediment,null,micrometer,null,paleolimnology,null,laser particle size analysis,N,null
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Corynoneura/Thienemanniella
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Parakiefferiella species B
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Parametriocnemus/Paraphaenocladius
earth science
paleoclimate
insect|paleolimnology
total head capsules,null,null,count per gram,null,insect|paleolimnology,null,null,N,null
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Phaenopsectra flavipes
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Sergentia sp.
earth science
paleoclimate
paleolimnology
biogenic silica,sediment,null,percent,null,paleolimnology,null,spectrophotometry,N,null
earth science
paleoclimate
paleolimnology
silt,sediment,null,percent,null,paleolimnology,null,laser particle size analysis,N,null
earth science
paleoclimate
paleolimnology
delta 13C,sediment,null,per mil,null,paleolimnology,null,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
paleolimnology
delta 15N,sediment,null,per mil,null,paleolimnology,null,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Protanypus sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Chironomus sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Polypedilum sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Stempellinella/Zavrelia
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Dicrotendipes sp.
earth science
paleoclimate
insect|paleolimnology
depth,null,null,centimeter,null,insect|paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
carbon,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Chaoborus trivittati
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Mesocricotopus sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Psectrocladius sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Cladopelma sp.
earth science
paleoclimate
insect|paleolimnology
identified midge,null,null,percent,null,insect|paleolimnology,null,null,N,Demicryptochironomus
earth science
paleoclimate
paleolimnology
oxygen isotopes
earth science
paleoclimate
paleolimnology
magnetic susceptibility
earth science
paleoclimate
paleolimnology
carbon isotopes
earth science
paleoclimate
paleolimnology
population abundance
earth science
paleoclimate
paleolimnology
physical properties
earth science
paleoclimate
paleolimnology
mineralogy
geoscientificInformation
Arctic
PAGES Arctic 2k
Younger Dryas
14524 cal yr BP
-5 cal yr BP
Complete
60.007
60.007
-159.143
-159.143
Continent
North America
United States Of America
Alaska
Lone Spruce Pond>LATITUDE 60.007>LONGITUDE -159.143
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Kaufman, D.S., Y. Axford, R.S. Anderson, S.F. Lamoureux,
D.E. Schindler, I.R. Walker, and A. Werner. 2012.
A multi-proxy record of the Last Glacial Maximum and last 14,500 years
of paleoenvironmental change at Lone Spruce Pond, southwestern Alaska.
Journal of Paleolimnology, Vol. 48, No. 1, June 2012, pp. 9-26.
DOI: 10.1007/s10933-012-9607-4
Sediment cores from Lone Spruce Pond (60.007°N, 159.143°W),
southwestern Alaska, record paleoenvironmental changes during
the global Last Glacial Maximum (LGM), and during the last 14,500
calendar years BP (14.5 cal ka). We analyzed the abundance of
organic matter, biogenic silica, carbon, and nitrogen, and the
isotope ratios of C and N, magnetic susceptibility, and grain-size
distribution of bulk sediment, abundance of alder shrub (Alnus) pollen,
and midge (Chironomidae and Chaoboridae) assemblages in a 4.7-m-long
sediment sequence from the depocenter at 22 m water depth. The basal
unit contains macrofossils dating to 25-21 cal ka (the global LGM),
and is interpreted as glacial-lacustrine sediment. The open water
requires that the outlet of the Ahklun Mountain ice cap had retreated
to within 6 km of the range crest. In addition to cladocerans
and diatoms, the glacial-lacustrine mud contains chironomids consistent
with deep, oligotrophic conditions; several taxa associated with
relatively warm conditions are present, suggestive of relative warmth
during the global LGM. The glacial-lacustrine unit is separated from
the overlying non-glacial lake sediment by a possible disconformity,
which might record a readvance of glacier ice. Non-glacial sediment
began accumulating around 14.5 cal ka, with high flux of mineral matter
and fluctuating physical and biological properties through the global
deglacial period, including a reversal in biogenic-silica (BSi) content
during the Younger Dryas (YD). During the global deglacial interval,
the d13C values of lake sediment were higher relative to other periods,
consistent with low C:N ratios (8), and suggesting a dominant
atmospheric CO2 source of C for phytoplankton. Concentrations of
aquatic faunal remains (chironomids and Cladocera) were low throughout
the deglacial interval, diversity was low and warm-indicator taxa were
absent. Higher production and air temperatures are inferred following
the YD, when bulk organic-matter (OM) content (LOI 550 °C) increased
substantially and permanently, from 10 to 30%, a trend paralleled by
an increase in C and N abundance, an increase in C:N ratio (to about 12),
and a decrease in d13C of sediment. Post-YD warming is marked by a rapid
shift in the midge assemblage. Between 8.9 and 8.5 cal ka, Alnus pollen
tripled (25-75 %), followed by the near-tripling of BSi (7-19 %) by 8.2
cal ka, and d15N began a steady rise, reflecting the buildup of N
and an increase in denitrification in soils. Several chironomid taxa
indicative of relatively warm conditions were present throughout
the Holocene. Quantitative chironomid-based temperature inferences
are complicated by the expansion of Alnus and resulting changes in
lake nutrient status and production; these changes were associated
with an abrupt increase in cladoceran abundance and persistent
shift in the chironomid assemblage. During the last 2,000 years,
chironomid-assemblage changes suggest cooler temperatures, and BSi
and OM values were generally lower than their maximum Holocene values,
with minima during the seventh and eighth centuries, and again during
the eighteenth century.
STUDY NOTES: Multiproxy sediment data from Lone Spruce Pond, Alaska,
for the past 14,500 years. Paleoenvironmental proxies measured
include abundance of organic matter, biogenic silica, carbon
and nitrogen content and isotopic ratios, magnetic susceptibility,
grain-size distribution of bulk sediment, abundance of alder shrub
(Alnus) pollen, and midge (Chironomidae and Chaoboridae) assemblages.
Lone Spruce Pond, Southwestern Alaska: 60.007°N, 159.143°W
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/alaska/lonespruce2012.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/alaska/lonespruce2012.txt
USA/NOAA
DIF
Version 9.8.4
2019-03-27
2019-03-27