Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-19T22:14:31.323Z Has data issue: false hasContentIssue false

A 7300-yr-old environmental history of seabird, human, and volcano impacts on Carlisle Island (the Islands of Four Mountains, eastern Aleutians, Alaska)

Published online by Cambridge University Press:  11 January 2019

Evgeniya A. Kuzmicheva*
Affiliation:
Laboratory of Historical Ecology, Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, 119071, Moscow, Russia
Olesya I. Smyshlyaeva
Affiliation:
Laboratory of Historical Ecology, Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, 119071, Moscow, Russia
Dmitry D. Vasyukov
Affiliation:
Laboratory of Historical Ecology, Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, 119071, Moscow, Russia
Bulat F. Khasanov
Affiliation:
Laboratory of Historical Ecology, Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, 119071, Moscow, Russia
Olga A. Krylovich
Affiliation:
Laboratory of Historical Ecology, Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, 119071, Moscow, Russia
Mitsuru Okuno
Affiliation:
AIG Collaborative Research Institute for International Study on Eruptive History and Informatics, also Department of Earth System Science, Faculty of Science, Fukuoka University, Fukuoka 814-0180, Japan
Dixie L. West
Affiliation:
Biodiversity Institute, University of Kansas, Lawrence, Kansas 66045, USA
Virginia L. Hatfield
Affiliation:
Museum of the Aleutians, 314 Salmon Way, P.O. Box 648, Unalaska, Alaska 99685, USA
Arkady B. Savinetsky
Affiliation:
Laboratory of Historical Ecology, Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, 119071, Moscow, Russia
*
*Corresponding author at: Laboratory of Historical Ecology, Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, 119071, Moscow, Russia. E-mail address: [email protected] (E.A. Kuzmicheva).

Abstract

We present the results of multiproxy study of a peat deposit from Carlisle Island (the Islands of Four Mountains, Aleutians). Vegetation on the initial stage of the peat is characterized by heath vegetation dominated by Ericales indicating cold conditions at 7300–6100 cal yr BP. The appearance of Betula and Alnus is the result of long-distance transportation attributable to strong winds at this time. Sedge-grass (Cyperaceae and Poaceae) communities began replacing heath vegetation at 6100 cal yr BP because of the climatic amelioration. C/N ratios and pollen spectra remain relatively stable at 6100–2450 cal yr BP. For the CR-03 peatland, volcanic tephra contributed significantly to the Fourier transform infrared spectroscopy spectral data. Volcanic input created overlap of an aluminosilicate signal with carbohydrate vibrations. Significant changes occurred at approximately 2450 cal yr BP when there is the some evidence of cooler and wetter conditions of the Neoglacial. High values of δ15N observed at 7100–7000 cal yr BP reflect the fertilizing effect of seabird nesting colonies. A decrease in δ15N ca. 6900 cal yr BP may indicate initial settlement on Carlisle Island corresponding with harvesting seabirds. Human predation continued until a series of volcanic eruptions, which deposited Okmok II and CR-02 tephra layers at ca. 2000 and 1050 cal yr BP, respectively.

Type
Aleutians Special Issue
Copyright
Copyright © University of Washington. Published by Cambridge University Press, 2019 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Anderson, S.T., Bank, T.P. II, 1952. Pollen and radiocarbon studies of Aleutian soil profiles. Science 116, 8486.Google Scholar
Artz, R.R., Chapman, S.J., Robertson, A.J., Potts, J.M., Laggoun-Défarge, F., Gogo, S., Comont, L., Disnar, J.R., Francez, A.J., 2008. FTIR spectroscopy can be used as a screening tool for organic matter quality in regenerating cutover peatlands. Soil Biology and Biochemistry 40, 515527.Google Scholar
Baes, A.U., Bloom, P.R., 1989. Diffuse reflectance and transmission Fourier transform infrared (DRIFT) spectroscopy of humic and fulvic acids. Soil Science Society of America Journal 53, 695700.Google Scholar
Bergstrom, D.M., Stewart, G.R., Selkirk, P.M., Schmidt, S., 2002. 15N natural abundance of fossil peat reflects the influence of animal-derived nitrogen on vegetation. Oecologia 130, 309314.Google Scholar
Biester, H., Knorr, K.-H., Schellekens, J., Basler, A., Hermanns, Y.-M., 2014. Comparison of different methods to determine the degree of peat decomposition in peat bogs. Biogeosciences 11, 26912707.Google Scholar
Blaauw, M., Christen, J.A., 2005. Radiocarbon peat chronologies and environmental change. Journal of the Royal Statistical Society: Series C (Applied Statistics) 54, 805816.Google Scholar
Black, L.T., 1981. Volcanism as a factor in human ecology: the Aleutian case. Ethnohistory 28, 313340.Google Scholar
Broder, T., Blodau, C., Biester, H., Knorr, K.H., 2012. Peat decomposition records in three pristine ombrotrophic bogs in southern Patagonia. Biogeosciences 9, 14791491.Google Scholar
Bronk Ramsey, C., 2008. Deposition models for chronological records. Quaternary Science Reviews 27, 4260.Google Scholar
Byers, F.M. Jr., 1959. Geology of Umnak and Bogoslof Islands, Aleutian Islands, Alaska. In: Investigations of Alaskan Volcanoes. U.S. Geological Survey Bulletin 1028-L. U.S. Government Printing Office, Washington, DC, pp. 267369.Google Scholar
Byrd, G.V., 1984. Vascular vegetation of Buldir Island, Aleutian Islands, compared to another Aleutian Island. Arctic 37, 3748.Google Scholar
Byrd, G.V., Renner, H.M., Renner, M., 2005. Distribution patterns and population trends of breeding seabirds in the Aleutian Islands. Fisheries Oceanography 14, 139159.Google Scholar
Caissie, B.E., Brigham-Grette, J., Lawrence, K.T., Herbert, T.D., Cook, M.S., 2010. Last Glacial Maximum to Holocene sea surface conditions at Umnak Plateau, Bering Sea, as inferred from diatom, alkenone, and stable isotope records. Paleoceanography 25, PA1206.Google Scholar
Chambers, F.M., van Geel, B., van der Linden, M., 2011. Considerations for the preparation of peat samples for palynology, and for the counting of pollen and non-pollen palynomorphs. Mires and Peat 7, 11.Google Scholar
Collins, N.J., 1969. The effects of volcanic activity on the vegetation of Deception Island. British Antarctic Survey Bulletin 21, 7994.Google Scholar
Crockford, S.J., 2012. Archaeozoology of Adak Island: 6000 years of subsistence history in the Central Aleutians. In: West, D.L., Hatfield, V.L., Wilmerding, E., Lefevre, C., Gualtieri, L. (Eds.), The People Before: The Geology, Paleoecology and Archaeology of Adak Island, Alaska. British Archaeological Reports International Series 2322. Archaeopress, Oxford, UK, pp. 107143.Google Scholar
Croll, D.A., Maron, J.L., Estes, J.A., Danner, E.M., Byrd, G.V., 2005. Introduced predators transform subarctic islands from grassland to tundra. Science 307, 19591961.Google Scholar
Daniëls, F.J., Talbot, S.S., Talbot, S.L., Schofield, W.B., 2004. Phytosociological study of the dwarf shrub heath of Simeonof Wilderness, Shumagin Islands, southwestern Alaska. Phytocoenologia 34, 465489.Google Scholar
Davis, R.S., Knecht, R.A., 2010. Continuity and change in the Eastern Aleutian archaeological sequence. Human Biology 85, 507524.Google Scholar
Demske, D., Tarasov, P.E., Nakagawa, T., Suigetsu 2006 Project Members, 2013. Atlas of pollen, spores and further non-pollen palynomorphs recorded in the glacial-interglacial late Quaternary sediments of Lake Suigetsu, central Japan. Quaternary International 290–291, 164238.Google Scholar
Djobo, J.N.Y., Elimbi, A., Tchakoute, H.K., Kumar, S., 2016. Reactivity of volcanic ash in alkaline medium, microstructural and strength characteristics of resulting geopolymers under different synthesis conditions. Journal of Materials Science 51, 1030110317.Google Scholar
Edwards, K.J., Dugmore, A.J., Blackford, J.J., 2004. Vegetational response to tephra deposition and land-use change in Iceland: a modern analogue and multiple working hypothesis approach to tephropalynology. Polar Record 40, 113120.Google Scholar
Faegri, K., Iversen, J., 1975. Textbook of Pollen Analysis. 3rd ed. Hafner Press, New York.Google Scholar
Fogarty, M.E., 1991. Report of Investigation for Site CR-3, The Aleut Corporation, BLM AA-12204. Bureau of Indian Affairs, Alaska Native Claims Settlement Act Office, Anchorage, AK.Google Scholar
Garroutte, M.D., Ickert-Bond, S.M., 2013. Origins of varied floristic compositions in the western Aleutian and Northern Bering Sea Islands. Alaska Park Science 12, 7079.Google Scholar
Grimm, E.C., 2015. Tilia for Windows. Version 2.0.41. Illinois State Museum, Research and Collection Center, Springfield, IL.Google Scholar
Hanson, B.A., 2017. ChemoSpec: Exploratory Chemometrics for Spectroscopy. R package version 4.4.17 (accessed 10 August 2017). https://CRAN.R-project.org/package=ChemoSpec.Google Scholar
Harada, N., Katsuki, K., Nakagawa, M., Matsumoto, A., Seki, O., Addison, J.A., Finney, B.P., Sato, M., 2014. Holocene sea surface temperature and sea ice extent in the Okhotsk and Bering Seas. Progress in Oceanography 126, 242253.Google Scholar
Hare, F.K., Hay, J.E., 1974. The climate of Canada and Alaska. In: Bryson, R.A., Hare, F.K. (Eds.), Climates of North America. World Survey of Climatology, 11. Elsevier, Amsterdam, pp. 49192.Google Scholar
Haslett, J., Parnell, A.C., 2008. A simple monotone process with application to radiocarbon-dated depth chronologies. Journal of the Royal Statistical Society: Series C (Applied Statistics) 57, 399418.Google Scholar
Hatfield, H.L., Nicolaysen, K., West, D., Krylovich, O.A., Bruner, K.M., Savinetsky, A.B., MacInnes, B.T., et al., 2019. Human resilience and resettlement among the Islands of Four Mountains, Aleutians, Alaska. Quaternary Research, this volume. https://doi.org/10.1017/qua.2018.149Google Scholar
Hatfield, V., 2011. Chipped stone technology and the colonization of the Aleutian archipelago. Arctic Anthropology 48, 113125.Google Scholar
Hatfield, V., Bruner, K., West, D., Savinetsky, A., Krylovich, O., Khasanov, B., Vasyukov, D., et al., 2016. At the foot of the Smoking Mountains: the 2014 scientific investigations in the Islands of the Four Mountains. Arctic Anthropology 53, 141159.Google Scholar
Heusser, C.J., 1973. Postglacial vegetation on Umnak Island, Aleutian Islands, Alaska. Review of Palaeobotany and Palynology 15, 277285.Google Scholar
Heusser, C.J., 1978. Postglacial vegetation on Adak Island, Aleutian Islands, Alaska. Bulletin of the Torrey Botanical Club 105, 1823.Google Scholar
Heusser, C.J., 1983. Pollen diagrams from the Shumagin Islands and adjacent Alaska Peninsula, southwestern Alaska. Boreas 12, 279295.Google Scholar
Heusser, C.J., 1985. Quaternary pollen records from the Pacific Northwest coast: Aleutians to the Oregon-California boundary. In: Bryant, V.M., Holloway, R.G. (Eds.), Pollen Records of Late-Quaternary North American sediments. American Association of Stratigraphic Palynologists Foundation, Dallas, TX, pp. 143165.Google Scholar
Heusser, C.J., 1990. Late Quaternary vegetation of the Aleutian Islands, southwestern Alaska. Canadian Journal of Botany 68, 13201326.Google Scholar
Heusser, C.J., Igarashi, Y., 1994. Quaternary migration pattern of Selaginella selaginoides in the North Pacific. Arctic and Alpine Research, 26, 187192.Google Scholar
Holmgren, A., Nordén, B., 1988. Characterization of peat samples by diffuse reflectance FT-IR spectroscopy. Applied Spectroscopy 42, 255261.Google Scholar
Hong, Y.T., Wang, Z.G., Jiang, H.B., Lin, Q.H., Hong, B., Zhu, Y.X., Wang, Y., Xu, L.S., Leng, X.T., Li, H.D., 2001. A 6000-year record of changes in drought and precipitation in northeastern China based on a δ13C time series from peat cellulose. Earth and Planetary Science Letters 185, 111119.Google Scholar
Hornibrook, E.R., Longstaffe, F.J., Fyfe, W.S., Bloom, Y., 2000. Carbon-isotope ratios and carbon, nitrogen and sulfur abundances in flora and soil organic matter from a temperate-zone bog and marsh. Geochemical Journal 34, 237245.Google Scholar
Hotes, S., Grootjans, A.P., Takahashi, H., Ekschmitt, K., Poschlod, P., 2010. Resilience and alternative equilibria in a mire plant community after experimental disturbance by volcanic ash. Oikos 119, 952963.Google Scholar
Hulten, E., 1968. Flora of Alaska and Neighboring Territories: A Manual of the Vascular Plants. Stanford University Press, Stanford, CA.Google Scholar
Hulten, E., 1974. The plant cover of southern Kamchatka. Arkiv för Botanik 7, 181257.Google Scholar
Jones, M.C., Peteet, D.M., Kurdyla, D., Guilderson, T., 2009. Climate and vegetation history from a 14,000-year peatland record, Kenai Peninsula, Alaska. Quaternary Research, 72, 207217.Google Scholar
Jordan, J.W., Krumhardt, A., 2003. Postglacial climate and vegetation on the western Alaska Peninsula. Alaska Journal of Anthropology 1, 1633.Google Scholar
Kalbitz, K., Geyer, S., Geyer, W., 2000. A comparative characterization of dissolved organic matter by means of original aqueous samples and isolated humic substances. Chemosphere 40, 13051312.Google Scholar
Kaufman, D.S., Axford, Y.L., Henderson, A., McKay, N.P., Oswald, W.W., Saenger, C., Anderson, R.S., et al., 2016. Holocene climate changes in eastern Beringia (NW North America): a systematic review of multi-proxy evidence. Quaternary Science Reviews 147, 312339.Google Scholar
Kisieliene, D., Stancikaite, M., Merkevicius, A., Namickiene, R., 2005. Vegetation responses to climatic changes during the Late Glacial according to palaeobotanical data in western Lithuania; a preliminary results. Polish Geological Institute Special Papers 16, 4552.Google Scholar
Krawiec, A.C., Kaufman, D.S., 2014. Holocene storminess inferred from sediments of two lakes on Adak Island, Alaska. Quaternary Research 82, 7384.Google Scholar
Krawiec, A.C., Kaufman, D.S., Vaillencourt, D.A., 2013. Age models and tephrostratigraphy from two lakes on Adak Island, Alaska. Quaternary Geochronology 18, 4153.Google Scholar
Krumins, J., Klavins, M., Seglins, V., 2012. Comparative study of peat composition by using FT-IR spectroscopy. Material Science and Applied Chemistry 26, 106114.Google Scholar
Krylovich, O.A., Vasyukov, D.D., Khasanov, B.F., Hatfield, V., West, D.L., Savinetsky, A.B., 2019. Hunter-gatherers subsistence and impact on fauna in the Islands of Four Mountains, eastern Aleutians, Alaska, over 3000 yr. Quaternary Research, this volume. https://doi.org/10.1017/qua.2018.127Google Scholar
Kuhry, P., Vitt, D.H., 1996. Fossil carbon/nitrogen ratios as a measure of peat decomposition. Ecology 77, 271275.Google Scholar
Larsen, J.F., Neal, C.A., Schaefer, J.R., Begét, J.E., Nye, C.J., 2007. Late Pleistocene and Holocene Caldera-Forming Eruptions of Okmok Caldera, Aleutian Islands, Alaska. Vol. 172, Volcanism and Subduction: The Kamchatka Region. Geophysical Monograph Series. American Geophysical Union, Washington, DC, pp. 343364.Google Scholar
Lincoln, R.J., Boxshall, G.A., Clark, P.F., 1985. A Dictionary of Ecology, Evolution, and Systematics. Cambridge University Press, New York.Google Scholar
Loisel, J., Garneau, M., and Hélie, J.-F., 2009. Modern Sphagnum δ13C signatures follow a surface moisture gradient in two boreal peat bogs, James Bay lowlands, Québec. Journal of Quaternary Science 24, 209214.Google Scholar
Maron, J.L., Estes, J.A., Croll, D.A., Danner, E.M., Elmendorf, S.C., Buckelew, S.L., 2006. An introduced predator alters Aleutian Island plant communities by thwarting nutrient subsidies. Ecological Monographs 76, 324.Google Scholar
Mizota, C., van Reeuwijk, L.P., 1989. Clay Mineralogy and Chemistry of Soils Formed in Volcanic Material in Diverse Climatic Regions. Soil Monograph 2. International Soil Reference and Information Centre, Wageningen, the Netherlands.Google Scholar
Moore, P.D., Webb, J.A., 1978. An Illustrated Guide to Pollen Analysis. Hodder and Stoughton, London.Google Scholar
Moore, P.D., Webb, J. A., Collinson, M.E., 1991. Pollen Analysis. Blackwell Scientific, London.Google Scholar
Neal, C.A., Izbekov, P., Nicolaysen, K.P., 2015. Preliminary analysis of a postglacial tephra section at Mount Cleveland Volcano, Chuginadak Island, Aleutian Arc. Geological Society of America, Abstracts with Programs 47, 11.Google Scholar
Niemeyer, J., Chen, Y., Bollag, J.-M., 1992. Characterization of humic acids, composts, and peat by diffuse reflectance Fourier-transform infrared spectroscopy. Soil Science Society of America Journal 56, 135140.Google Scholar
Okuno, M., Izbekov, P., Nicolaysen, K.P., Nakamura, T., Savinetsky, A.B., Vasyukov, D.D., Krylovich, O.A., et al., 2017. AMS radiocarbon dates on peat section related with tephra and archaeological sites in Carlisle Island, the Islands of Four Mountains, Alaska. Radiocarbon 59, 17711778.Google Scholar
Parnell, A., 2016. Bchron: Radiocarbon Dating, Age-Depth Modelling, Relative Sea Level Rate Estimation, and Non-parametric Phase Modelling. R package version 4.2.6 (accessed 10 August 2017). https://CRAN.R-project.org/package=Bchron.Google Scholar
Parnell, A.C., Haslett, J., Allen, J.R.M., Buck, C.E., Huntley, B., 2008. A flexible approach to assessing synchroneity of past events using Bayesian reconstructions of sedimentation history. Quaternary Science Reviews 27, 18721885.Google Scholar
Pekar, K., Nicolaysen, K.P., Bridges, D., Dehn, J., 2005. Prehistoric lahar and tephra sequences on Mt. Cleveland, Islands of Four Mountains, eastern Aleutian Islands. Eos Transactions, American Geophysical Union 86, Fall Meeting Supplement, abstract V33B-0681.Google Scholar
Persico, L., Lanman, H., Loopesko, L., Bruner, K., Nicolaysen, K. 2018. Geomorphic processes influence human settlement on two islands in the Islands of Four Mountains, Alaska. Quaternary Research, this volume. https://doi.org/10.1017/qua.2018.112Google Scholar
Peteet, D.M., Mann, D.H., 1994. Late-glacial vegetational, tephra, and climatic history of southwestern Kodiak Island, Alaska. Ecoscience 1, 255267.Google Scholar
Pickett, S.T., 1980. Non-equilibrium coexistence of plants. Bulletin of the Torrey Botanical Club 107, 238248.Google Scholar
R Core Team, 2017. R: A Language and Environment for Statistical Computing (accessed 15 December 2017). R Foundation for Statistical Computing, Vienna. https://www.R-project.org/.Google Scholar
Reimer, P.J., Bard, E., Bayliss, A., Beck, J.W., Blackwell, P.G., Ramsey, C.B., Buck, C.E., et al., 2013. IntCal13 and Marine13 radiocarbon age calibration curves 0–50,000 years cal BP. Radiocarbon 55, 18691887.Google Scholar
Rodionov, S.N., Bond, N.A., Overland, J.E., 2007. The Aleutian Low, storm tracks, and winter climate variability in the Bering Sea. Deep Sea Research Part II: Topical Studies in Oceanography 54, 25602577.Google Scholar
Sarwar, A.K.M.G., Takahashi, H., 2014. Pollen morphology of the tribe Phyllodoceae (Ericoideae, Ericaceae) and its taxonomic significance. Bangladesh Journal of Plant Taxonomy 21, 129137.Google Scholar
Savinetsky, A.B., Khasanov, B.F., West, D.L., Kiseleva, N.K., Krylovich, O.A., 2014. Nitrogen isotope composition of peat samples as a proxy for determining human colonization of islands. Arctic Anthropology 51, 7885.Google Scholar
Savinetsky, A.B, West, D.L., Antipushina, Z.A., Khasanov, B.F., Kiseleva, N.K., Krylovich, O.A., Pereladov, A.M., 2012. The reconstruction of ecosystems history of Adak Island (Aleutian Islands) during the Holocene. In: West, D.L., Hatfield, V.L., Wilmerding, E., Lefevre, C., Gualtieri, L. (Eds.), The People Before: The Geology, Paleoecology and Archaeology of Adak Island, Alaska. British Archaeological Reports International Series 2322. Archaeopress, Oxford, UK, pp. 75106.Google Scholar
Shacklette, H.T., Durrell, L.W., Erdman, J.A., Keith, J.R., Klein, W.M., Krog, H., Persson, H., Skuja, H., Weber, W.A., 1969. Vegetation of Amchitka Island, Aleutian Islands, Alaska. U.S. Geological Survey Professional Paper 648. U.S. Government Printing Office, Washington, DC.Google Scholar
Stockmarr, J., 1973. Determination of spore concentration with an electronic particle counter. Geological Survey of Denmark Yearbook 1972, 8789.Google Scholar
Szpak, P., Millaire, J.F., White, C.D., Longstaffe, F.J., 2012. Influence of seabird guano and camelid dung fertilization on the nitrogen isotopic composition of field-grown maize (Zea mays). Journal of Archaeological Science 39, 37213740.Google Scholar
Talbot, S.S., Talbot, S.L., 1994. Numerical classification of the coastal vegetation of Attu Island, Aleutian Islands, Alaska. Journal of Vegetation Science 5, 867876.Google Scholar
Tatewaki, M., Kobayashi, Y., 1934. A contribution to the flora of the Aleutian Islands. Journal of the Faculty of Agriculture, Hokkaido Imperial University 36, 1119.Google Scholar
Teong, I.T., Felix, N.L.L., Mohd, S., Sulaeman, A., 2016. Characterization of soil organic matter in peat soil with different humification levels using FTIR. IOP Conference Series: Materials Science and Engineering 136, 012010.Google Scholar
Thermo Electron Corporation, 2006. Omnic User’s Guide. Version 7.3. Thermo Electron Corporation, Madison, WI.Google Scholar
Thorson, R.M., Hamilton, T.D., 1986. Glacial geology of the Aleutians (based on the contributions of Robert F. Black). In: Hamilton, T.D., Reed, K.M., Thorson, R.M. (Eds.), Glaciation in Alaska—The Geological Record. Alaska Geological Society, Anchorage, AK, pp. 171192.Google Scholar
Tsutsuki, K., Kuwatsuka, S., 1992. Characterization of humin-metal complexes in a buried volcanic ash soil profile and a peat soil. Soil Science and Plant Nutrition 38, 297306.Google Scholar
Vaillencourt, D.A., 2013. Five-Thousand Years of Hydroclimate Variability on Adak Island, Alaska Inferred from δD of n-Alkanoic Acids. Master’s thesis, Northern Arizona University, Flagstaff.Google Scholar
Warner, B.G., Chinnappa, C.C., 1986. Taxonomic implications and evolutionary trends in pollen of Canadian Ericales. Canadian Journal of Botany 64, 31133126.Google Scholar
Werner, C., Kern, C., Coppola, D., Lyons, J.J., Kelly, P.J., Wallace, K.L., Schneider, D.J., Wessels, R.L., 2017. Magmatic degassing, lava dome extrusion, and explosions from Mount Cleveland volcano, Alaska, 2011–2015: insight into the continuous nature of volcanic activity over multi-year timescales. Journal of Volcanology and Geothermal Research 337, 98110.Google Scholar
West, D.L., Hatfield, V.L., Wilmerding, E., Lefevre, C., Gualtieri, L. (Eds.), 2012. The People Before: The Geology, Paleoecology and Archaeology of Adak Island, Alaska. British Archaeological Reports International Series 2322. Archaeopress, Oxford, UK.Google Scholar
Zoltai, S.C., 1989. Late Quaternary volcanic ash in the peatlands of central Alberta. Canadian Journal of Earth Sciences 26, 207214.Google Scholar
Supplementary material: File

Kuzmicheva et al. supplementary material

Table S1

Download Kuzmicheva et al. supplementary material(File)
File 531.8 KB
Supplementary material: File

Kuzmicheva et al. supplementary material

Table S1 Caption

Download Kuzmicheva et al. supplementary material(File)
File 13.2 KB