9129767 BCZWLUQ8 1 apa 50 date desc year Lange 18 https://clange.scrippsprofiles.ucsd.edu/wp-content/plugins/zotpress/
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Hagemann, J. R., Lamy, F., Arz, H. W., Lembke-Jene, L., Auderset, A., Harada, N., Ho, S. L., Iwasaki, S., Kaiser, J., Lange, C. B., Murayama, M., Nagashima, K., Nowaczyk, N., Martínez-García, A., & Tiedemann, R. (2024). A marine record of Patagonian ice sheet changes over the past 140,000 years. Proceedings of the National Academy of Sciences, 121(12), e2302983121. https://doi.org/10.1073/pnas.2302983121
Oliva, E. T., Michel, E., Siani, G., Crosta, X., Lange, C. B., Fontaine, C. M., & Cárdenas, P. (2024). Paleoceanography of the Southeast Pacific since the late glacial from diatom and foraminiferal assemblages. Palaeogeography, Palaeoclimatology, Palaeoecology, 655, 112515. https://doi.org/10.1016/j.palaeo.2024.112515
Poblete-Ulloa, J., Gutiérrez, M. H., Lange, C. B., Narváez, D. A., Montero, P., González, H. E., & Fernández, C. (2024). Freshwater discharge drives latitudinal changes of phytoplankton composition on the continental shelf off Chilean Patagonia. Journal of Marine Systems, 245, 103993. https://doi.org/10.1016/j.jmarsys.2024.103993
Vorrath, M.-E., Müller, J., Cárdenas, P., Opel, T., Mieruch, S., Esper, O., Lembke-Jene, L., Etourneau, J., Vieth-Hillebrand, A., Lahajnar, N., Lange, C. B., Leventer, A., Evangelinos, D., Escutia, C., & Mollenhauer, G. (2023). Deglacial and Holocene sea-ice and climate dynamics in the Bransfield Strait, northern Antarctic Peninsula. Climate of the Past, 19(5), 1061–1079. https://doi.org/10.5194/cp-19-1061-2023
Troch, M., Bertrand, S., Wellner, J. S., Lange, C. B., & Hughen, K. A. (2023). Postglacial fluctuations of western outlet glaciers of the Southern Patagonian Icefield reconstructed from fjord sediments (Chile, 50°S). Quaternary Science Reviews, 301, 107934. https://doi.org/10.1016/j.quascirev.2022.107934
Troch, M., Bertrand, S., Lange, C. B., Cárdenas, P., Arz, H., Pantoja-Gutiérrez, S., De Pol-Holz, R., & Kilian, R. (2022). Glacial isostatic adjustment near the center of the former Patagonian Ice Sheet (48°S) during the last 16.5 kyr. Quaternary Science Reviews, 277, 107346. https://doi.org/10.1016/j.quascirev.2021.107346
Crosta, X., Kohfeld, K. E., Bostock, H. C., Chadwick, M., Du Vivier, A., Esper, O., Etourneau, J., Jones, J., Leventer, A., Müller, J., Rhodes, R. H., Allen, C. S., Ghadi, P., Lamping, N., Lange, C. B., Lawler, K.-A., Lund, D., Marzocchi, A., Meissner, K. J., … Yang, J. (2022). Antarctic sea ice over the past 130,000 years – Part 1: a review of what proxy records tell us. Climate of the Past, 18(8), 1729–1756. https://doi.org/10.5194/cp-18-1729-2022
Reyes-Macaya, D., Hoogakker, B., Martinez-Mendez, G., Llanillo, P. J., Grasse, P., Mohtadi, M., Mix, A., Leng, M. J., Struck, U., McCorkle, D. C., Troncoso, M., Gayo, E. M., Lange, C. B., Farias, L., Carhuapoma, W., Graco, M., Cornejo-D’Ottone, M., Holz, R. D., Fernandez, C., … Hebbeln, D. (2022). Isotopic characterization of water masses in the Southeast Pacific region: Paleoceanographic implications. Journal of Geophysical Research-Oceans, 127(1). https://doi.org/ARTN e2021JC017525 10.1029/2021JC017525
Toyos, M. H., Winckler, G., Arz, H. W., Lembke-Jene, L., Lange, C. B., Kuhn, G., & Lamy, F. (2022). Variations in export production, lithogenic sediment transport and iron fertilization in The Pacific sector of the Drake Passage over the pest 400 kyr. Climate of the Past, 18(1), 147–166. https://doi.org/10.5194/cp-18-147-2022
Troch, M., Bertrand, S., Amann, B., Liu, D. W., Placencia, J. A., & Lange, C. B. (2021). Sediment provenance in the Baker-Martinez fjord system (Chile, 48°S) indicated by magnetic susceptibility and inorganic. Frontiers in Marine Science, 8, 17. https://doi.org/10.3389/fmars.2021.612309
Vorrath, M. E., Muller, J., Rebolledo, L., Cardenas, P., Shi, X. X., Esper, O., Opel, T., Geibert, W., Munoz, P., Haas, C., Kuhn, G., Lange, C. B., Lohmann, G., & Mollenhauer, G. (2020). Sea ice dynamics in the Bransfield Strait, Antarctic Peninsula, during past 240 years: a multi-proxy intercomparison study. Climate of the Past, 16(6), 2459–2483. https://doi.org/10.5194/cp-16-2459-2020
Rios, F., Kilian, R., Lange, C. B., Baeza-Urrea, O., Arz, H. W., Zindorf, M., De Pol-Holz, R., & Lamy, F. (2020). Environmental and coastline changes controlling Holocene carbon accumulation rates in fjords of the western Strait of Magellan region. Continental Shelf Research, 199. https://doi.org/10.1016/j.csr.2020.104101
Toyos, M. H., Lamy, F., Lange, C. B., Lembke-Jene, L., Saavedra-Pellitero, M., Esper, O., & Arz, H. W. (2020). Antarctic Circumpolar Current Dynamics at the Pacific Entrance to the Drake Passage Over the Past 1.3 Million Years. Paleoceanography and Paleoclimatology, 35(7). https://doi.org/10.1029/2019pa003773
Cardenas, P., Lange, C. B., Vernet, M., Esper, O., Srain, B., Vorrath, M. E., Ehrhardt, S., Muller, J., Kuhn, G., Arz, H. W., Lembke-Jene, L., & Lamy, F. (2019). Biogeochemical proxies and diatoms in surface sediments across the Drake Passage reflect oceanic domains and frontal systems in the region. Progress in Oceanography, 174, 72–88. https://doi.org/10.1016/j.pocean.2018.10.004
Rebolledo, L., Bertrand, S., Lange, C. B., Tapia, F. J., Quiroga, E., Troch, M., Silva, N., Cárdenas, P., & Pantoja, S. (2019). Compositional and biogeochemical variations of sediments across the terrestrial-marine continuum of the Baker-Martínez fjord system (Chile, 48°S). Progress in Oceanography, 174, 89–104. https://doi.org/10.1016/j.pocean.2018.12.004
Ortega, C., Vargas, G., Rojas, M., Rutllant, J. A., Muñoz, P., Lange, C. B., Pantoja, S., Dezileau, L., & Ortlieb, L. (2019). Extreme ENSO-driven torrential rainfalls at the southern edge of the Atacama Desert during the Late Holocene and their projection into the 21th century. Global and Planetary Change, 175, 226–237. https://doi.org/10.1016/j.gloplacha.2019.02.011
Aracena, C., González, H. E., Garcés-Vargas, J., Lange, C. B., Pantoja, S., Muñoz, F., Teca, E., & Tejos, E. (2018). Influence of summer conditions on surface water properties and phytoplankton productivity in embayments of the South Shetland Islands. Polar Biology, 41(10), 2135–2155. https://doi.org/10.1007/s00300-018-2338-x
Bertrand, S., Lange, C. B., Pantoja, S., Hughen, K., Van Tornhout, E., & Wellner, J. S. (2017). Postglacial fluctuations of Cordillera Darwin glaciers (southernmost Patagonia) reconstructed from Almirantazgo fjord sediments. Quaternary Science Reviews, 177, 265–275. https://doi.org/10.1016/j.quascirev.2017.10.029
Gaonkar, C. C., Kooistra, W. H. C. F., Lange, C. B., Montresor, M., & Sarno, D. (2017). Two New Species in the Chaetoceros Socialis Complex (Bacillariophyta): C. Sporotruncatus and C. Dichatoensis, and Characterization of Its Relatives, C. Radicans and C. Cinctus. Journal of Phycology, 53(4), 889–907. https://doi.org/10.1111/jpy.12554
Piredda, R., Sarno, D., Lange, C. B., Tomasino, M. P., Zingone, A., & Montresor, M. (2017). Diatom resting stages in surface sediments: A pilot study comparing next generation sequencing and serial dilution cultures. Cryptogamie, Algologie, 38(1), 31–46, 16. https://doi.org/10.7872/crya/v38.iss1.2017.31
Li, Y., Boonprakob, A., Gaonkar, C. C., Kooistra, W. H. C. F., Lange, C. B., Hernandez-Becerrill, D., Chen, Z. Y., Moestrup, O., & Lundholm, N. (2017). Diversity in the Globally Distributed Diatom Genus Chaetoceros (Bacillariophyceae): Three New Species from Warm-Temperate Waters. PLOS ONE, 12(1). https://doi.org/ARTN e0168887 10.1371/journal.pone.0168887
Schimmelmann, A., Lange, C. B., Schieber, J., Francus, P., Ojala, A. E. K., & Zolitschka, B. (2016). Varves in marine sediments: A review. Earth-Science Reviews, 159, 215–246. https://doi.org/10.1016/j.earscirev.2016.04.009
Lamy, F., Arz, H. W., Kilian, R., Lange, C. B., Lembke-Jene, L., Wengler, M., Kaiser, J., Baeza-Urrea, O., Hall, I. R., Harada, N., & Tiedemann, R. (2015). Glacial reduction and millennial-scale variations in Drake Passage throughflow. Proceedings of the National Academy of Sciences, 112, 13496–13501.
Aracena, C., Kilian, R., Lange, C. B., Bertrand, S., Lamy, F., Arz, H. W., De Pol-Holz, R., Baeza, O., Pantoja, S., & Kissel, C. (2015). Holocene variations in productivity associated with changes in glacier activity and freshwater flux in the central basin of the Strait of Magellan. Palaeogeography Palaeoclimatology Palaeoecology, 436, 112–122. https://doi.org/10.1016/j.palaeo.2015.06.023
Rebolledo, L., Lange, C. B., Bertrand, S., Munoz, P., Salamanca, M., Lazo, P., Iriarte, J. L., Vargas, G., Pantoja, S., & Dezileau, L. (2015). Late Holocene precipitation variability recorded in the sediments of Reloncavi Fjord (41 degrees S, 72 degrees W), Chile. Quaternary Research, 84(1), 21–36. https://doi.org/10.1016/j.yqres.2015.05.006
Srain, B., Pantoja, S., Sepúlveda, J., Lange, C. B., Muñoz, P., Summons, R. E., McKay, J., & Salamanca, M. (2015). Interdecadal changes in intensity of the oxygen minimum zone off Concepción, Chile (~ 36° S), over the last century. Biogeosciences, 12(20), 6045–6058. https://doi.org/10.5194/bg-12-6045-2015
Sánchez, G. E., Lange, C. B., Flóres, J.-A., Caniupán, M., & Lamy, F. (2014). Cocolitóforos en sedimentos marinos frente a la entrada occidental del Estrecho de Magallanes (53°S) revelan cambios en la productividad durante los últimos 30.000 años. Latin American Journal of Aquatic Research, 42, 1035–1049. https://doi.org/10.3856/vol42-issue5-fulltext-8
Caniupán, M., Lamy, F., Lange, C. B., Kaiser, J., Kilian, R., Arz, H. W., León, T., Mollenhauer, G., Sandoval, S., De Pol-Holz, R., Pantoja, S., Wellner, J., & Tiedemann, R. (2014). Holocene sea-surface temperature variability in the Chilean fjord region. Quaternary Research, 82(2), 342–353. https://doi.org/10.1016/j.yqres.2014.07.009
Harada, N., Ninnemann. U, Lange. CB, Marchant ME, Sato, M., Ahagon, N., & Pantoja, S. (2013). Deglacial–Holocene environmental changes at the Pacific entrance of the Strait of Magellan. Palaeogeography, Palaeoclimatology, Palaeoecology, 375(0), 125–135. https://doi.org/10.1016/j.palaeo.2013.02.022
Sanchez, G. E., Lange, C. B., Gonzalez, H. E., Vargas, G., Munoz, P., Cisternas, C., & Pantoja, S. (2012). Siliceous microorganisms in the upwelling center off Concepcion, Chile (36 degrees S): Preservation in surface sediments and downcore fluctuations during the past similar to 150 years. Progress in Oceanography, 92–95, 50–65. https://doi.org/10.1016/j.pocean.2011.07.014
Munoz, P., Dezileau, L., Cardenas, L., Sellanes, J., Lange, C. B., Inostroza, J., Muratli, J., & Salamanca, M. A. (2012). Geochemistry of trace metals in shelf sediments affected by seasonal and permanent low oxygen conditions off central Chile, SE Pacific (similar to 36 degrees S). Continental Shelf Research, 33, 51–68. https://doi.org/10.1016/j.csr.2011.11.006
Bertrand, S., Hughen, K. A., Lamy, F., Stuut, J. B. W., Torrejon, F., & Lange, C. B. (2012). Precipitation as the main driver of Neoglacial fluctuations of Gualas glacier, Northern Patagonian Icefield. Climate of the Past, 8(2), 519–534. https://doi.org/10.5194/cp-8-519-2012
Caniupan, M., Lamy, F., Lange, C. B., Kaiser, J., Arz, H., Kilian, R., Urrea, O. B., Aracena, C., Hebbeln, D., Kissel, C., Laj, C., Mollenhauer, G., & Tiedemann, R. (2011). Millennial-scale sea surface temperature and Patagonian Ice Sheet changes off southernmost Chile (53 degrees S) over the past similar to 60 kyr. Paleoceanography, 26. https://doi.org/10.1029/2010pa002049
Aracena, C., Lange, C. B., Iriarte, J. L., Rebolledo, L., & Pantoja, S. (2011). Latitudinal patterns of export production recorded in surface sediments of the Chilean Patagonian fjords (41-55 degrees S) as a response to water column productivity. Continental Shelf Research, 31(3–4), 340–355. https://doi.org/10.1016/j.csr.2010.08.008
Rebolledo, L., Gonzalez, H. E., Munoz, P., Iriarte, J. L., Lange, C. B., Pantoja, S., & Salamanca, M. (2011). Siliceous productivity changes in Gulf of Ancud sediments (42 degrees S, 72 degrees W), southern Chile, over the last similar to 150 years. Continental Shelf Research, 31(3–4), 356–365. https://doi.org/10.1016/j.csr.2010.06.015
Salgado, P., Troncoso, V. A., Montresor, M., Salamanca, M., & Lange, C. B. (2011). First record of Lingulodinium polyedrum (Dinophyceae) resting cysts in coastal sediments from the Inner Sea of Chiloe, Los Lagos Region, southern Chile (similar to 41 degrees-43 degrees S). Gayana Botanica, 68(1), 106–109.
Diaz-Ochoa, J. A., Pantoja, S., De Lange, G. J., Lange, C. B., Sanchez, G. E., Acuna, V. R., Munoz, P., & Vargas, G. (2011). Oxygenation variability in Mejillones Bay, off northern Chile, during the last two centuries. Biogeosciences, 8(1), 137–146. https://doi.org/10.5194/bg-8-137-2011
Contreras, S., Lange, C. B., Pantoja, S., Lavik, G., Rincon-Martinez, D., & Kuypers, M. M. M. (2010). A rainy northern Atacama Desert during the last interglacial. Geophysical Research Letters, 37. https://doi.org/10.1029/2010gl045728
Montecino, V., & Lange, C. B. (2009). The Humboldt Current System: Ecosystem components and processes, fisheries, and sediment studies. Progress in Oceanography, 83(1–4), 65–79. https://doi.org/10.1016/j.pocean.2009.07.041
Diaz-Ochoa, J. A., Lange, C. B., Pantoja, S., De Lange, G. J., Gutierrez, D., Munoz, P., & Salamanca, M. (2009). Fish scales in sediments from off Callao, central Peru. Deep-Sea Research Part Ii-Topical Studies in Oceanography, 56(16), 1113–1124. https://doi.org/10.1016/j.dsr2.2008.09.015
Caniupan, M., Villasenor, T., Pantoja, S., Lange, C. B., Vargas, G., Munoz, P., & Salamanca, M. (2009). Temporal changes in phytoplankton productivity over the last similar to 200 years recorded from Mejillones Bay laminated sediments. Revista Chilena De Historia Natural, 82(1), 83–96.
Sanchez, G. E., Sarno, D., Montresor, M., Siano, R., & Lange, C. B. (2009). Germination of Resting Stages of Diatoms and Dinoflagellates in Marine Sediments From Two Upwelling Areas of Chile. Gayana Botanica, 66(2), 239–255.
Diaz-Ochoa, J. A., Lange, C. B., & De Lange, G. J. (2008). Fish scale preservation and abundance in sediments from the continental margin off Chile (21-36 degrees S). Revista Chilena De Historia Natural, 81(4), 561–574.
Sanchez, G. E., Pantoja, S., Lange, C. B., Gonzalez, H. E., & Daneri, G. (2008). Seasonal changes in particulate biogenic and lithogenic silica in the upwelling system off Concepcion (similar to 36 degrees S), Chile, and their relationship to fluctuations in marine productivity and continental input. Continental Shelf Research, 28(18), 2594–2600. https://doi.org/10.1016/j.csr.2008.07.010
Tapia, R., Lange, C. B., & Marchant, M. (2008). Living (stained) calcareous benthic foraminifera from recent sediments off Concepcion, central-southern Chile (similar to 36 degrees S). Revista Chilena De Historia Natural, 81(3), 403–416.
Mohtadi, M., Rossel, P., Lange, C. B., Pantoja, S., Boning, P., Repeta, D. J., Grunwald, M., Lamy, F., Hebbeln, D., & Brumsack, H. J. (2008). Deglacial pattern of circulation and marine productivity in the upwelling region off central-south Chile. Earth and Planetary Science Letters, 272(1–2), 221–230. https://doi.org/10.1016/j.epsl.2008.04.043
Venrick, E. L., Lange, C. B., Reid, F. M. H., & Dever, E. P. (2008). Temporal patterns of species composition of siliceous phytoplankton flux in the Santa Barbara Basin. Journal of Plankton Research, 30(3), 283–297. https://doi.org/10.1093/plankt/fbm107
Vargas, G., Pantoja, S., Rutllant, J. A., Lange, C. B., & Ortlieb, L. (2007). Enhancement of coastal upwelling and interdecadal ENSO-like variability in the Peru-Chile Current since late 19th century. Geophysical Research Letters, 34(13). https://doi.org/10.1029/2006gl028812
Contreras, S., Pantoja, S., Neira, C., & Lange, C. B. (2007). Biogeochemistry of surface sediments off Concepcion (~36°S), Chile: El Nino vs. non-El Nino conditions. Progress in Oceanography, 75(3), 576–585. https://doi.org/10.1016/j.pocean.2007.08.030
Harada, N., Uchida, M., Shibata, Y., Ahagon, N., Miyashita, W., Lange, C. B., & Pantoja, S. (2007). Fluctuations in alkenone-derived sea surface temperature, productivity, and ventilation in the Magellan Strait, Chilean continental margin, over the past 12 kyr.