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桑德拉Passchier

科学与数学学院地球与环境研究教授

办公室:: 环境与生命科学中心324
电子邮件:: passchiers@montclair.edu
电话:: 973-655-3185
度:: 硕士，阿姆斯特丹大学; 俄亥俄州立大学博士
名片:: 下载电子名片

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My research focuses on understanding the impacts of climate change on polar ice sheets, lake environments, and coastal systems. I am actively involved in field and shipboard projects located in Antarctica, Greenland, and along the New Jersey coast, among other regions.

I am a sedimentologist and study drillcores using analytical methods, such as laser particle size analysis, Scanning Electron Microscopy, XRF core-scanning, and bulk geochemical analysis to reconstruct changes in provenance, paleoclimate, paleoceanography, sediment transport, and environments of deposition in a source-to-sink approach. The goal of this research is to understand the drivers of ice-sheet change over different climate states, and the role of high-latitude feedbacks in the Earth System.

As a principal investigator on projects funded by the U.S. National Science Foundation, I am currently targeting the stratigraphic record of West Antarctic ice behavior and its impact on sea level and ocean circulation. Ongoing polar work includes participation as a shipboard scientist on IODP Expedition 400 to the Northwest Greenland margin.

Locally in New Jersey, I am interested in understanding the impacts of coastal management strategies on sediment dynamics under climate change. Our efforts involve field work along the coast of New Jersey and samples are processed in the Sedimentology lab for grain-size analysis and various other analytical techniques.

Dozens of undergraduate students have participated in and contributed to the lab's research, and I have served as the primary thesis or dissertation research advisor for more than 20 graduate students. The sections linked at the bottom of this page include more information on funded projects, research activities and past and current lab members.

My teaching assignments include Sedimentology & Stratigraphy, Advanced Marine Geology, Glacial Deposits and introductory courses in the Geosciences, such as Physical Geology and Earth System History.

Beyond Montclair State University, I have been a Distinguished Lecturer for the International Ocean Discovery Program (IODP), an instructor of graduate students and post-docs with the PAIS-IODP Antarctic Summer School at Texas A&M University, and with the GLASS GLAcial Sediment School at Oregon State University. I am currently part of the editorial board of the scientific journal Marine Geology.

Over the past 20 years, I have served as an Associate Editor for the international journal The Holocene, and held membership of several expert panels, such as the Geological Society of America Student Grants Committee, the Science Evaluation Panel for the International Ocean Discovery Program, the international Science Framework Working Group for Scientific Ocean Drilling, the U.S. Advisory Committee for Scientific Ocean Drilling (USAC), the Polar Rock Repository Curatorial Advisory Board, and the international steering committee on Antarctic Climate Evolution (SCAR-ACE).

I am a recipient of Montclair State University's College of Science and Math Faculty Research Award and an Antarctic Service Medal by the U.S. National Science Foundation. I am a Fellow of the Geological Society of America.

Selected Recent Publications (*/** designates MSU graduate/undergraduate student, ^other student):

*Hojnacki, V., Passchier, S., 2024. Early Oligocene record of an Iceberg Alley in the Weddell Sea from quartz sand microtextural analysis at ODP Site 696. Geosphere.

*Light, J.J., Passchier, S., 2023. Eocene to Oligocene cooling and ice growth based on the geochemistry of interglacial mudstones from the East Antarctic continental shelf. Antarctic Science, 35(4), 270–282. doi:10.1017/S0954102023000159

*Hojnacki, V., *Lepp, A., *Horowitz Castaldo, J., *States, A., Li, X., & Passchier, S., 2022. Impact of Eocene-Oligocene Antarctic glaciation on the paleoceanography of the Weddell Sea. Paleoceanography and Paleoclimatology, 37, e2022PA004440. https://doi.org/10.1029/2022PA004440

Gohl, K., Uenzelmann-Neben, G., Gille-Petzoldt, J., Hillenbrand, C.-D., Klages, J. P., Bohaty, S. M., Passchier, S., Frederichs, T. Wellner, J.S., Lamb, R., Leitchenkov, G. and IODP Expedition 379 Scientists, 2021. Evidence for a highly dynamic West Antarctic Ice Sheet during the Pliocene. Geophysical Research Letters, 48, e2021GL093103. https://doi.org/10.1029/2021GL093103

^Tibbett, E.J., Scher, H.D., Warny, S., Tierney, J.E., Passchier, S., Feakins, S.J., 2021. Late Eocene record of hydrology and temperature from Prydz Bay, East Antarctica, Paleoceanography and Paleoclimatology, https://doi.org/10.1029/2020PA004204

Dunkl, I. et al. (incl. Passchier, S.), 2020. Comparability of heavy mineral data – the first interlaboratory round robin test. Earth Science Reviews, https://doi.org/10.1016/j.earscirev.2020.103210

*Kelly, A.L., Passchier, S., 2018. A sub-millennial sediment record of ice-stream retreat and meltwater storage in the Baltic Ice Lake during the Bolling-Allerod interstadial. Quaternary Science Reviews 198, 126-139, https://doi.org/10.1016/j.quascirev.2018.08.018

Colleoni, F., De Santis, L., Siddoway, C.S., Bergamasco, A., Golledge, N.R., Lohmann, G., Passchier, S. and Siegert, M.J., 2018. Spatio-temporal variability of processes across Antarctic ice-bed-ocean interfaces. Nature Communications. doi: 10.1038/s41467-018-04583-0

Passchier, S., *Ciarletta, D., **Henao, V, **Sekkas, V., 2018. Sedimentary processes and facies on a high-latitude passive continental margin, Wilkes Land, East Antarctica. Geological Society of London, Special Publication, v. 475, doi:10.1144/SP475.3

Sangiorgi, F., Bijl, P., Passchier, S., Salzmann, U., Schouten, S., McKay, R., Cody, R., Pross, J., van de Flierdt, T., Bohaty, S., Levy, R., Williams, T., Escutia, C., and Brinkhuis, H., 2018. A warm Southern Ocean and retreated Wilkes Land ice sheet (East Antarctica) during the mid-Miocene. Nature Communications, doi:10.1038/s41467-017-02609-7.

Passchier, S., *Ciarletta, D., **Miriagos, T., Bijl, P., Bohaty, S., 2017. An Antarctic stratigraphic record of step-wise ice growth through the Eocene-Oligocene Transition. Geological Society of America Bulletin, Vol. 129, doi: 10.1130/B31482.1.

For a complete publication list check out my CV or Google Scholar page https://scholar.google.com/citations?user=HADQgrYAAAAJ&hl=en&oi=ao

专业化

我是一名沉积学家，使用现场和实验室方法，1)分析过去不同气候状态下冰盖变化的地质档案，以及2)沿海系统的沉积动力学。

简历/简历

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办公时间

秋天

周一: 下午2点至3点; 324室
周四: 下午3:30 - 4:30; 324室

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研究项目

横跨上新世气候最佳期的南极西部阿蒙森海冰盖变化与古海洋学

南极西部冰原是最易受变暖影响的极地冰块，已经是全球平均海平面上升的主要原因。鉴于持续变暖，它的命运是一个非常不确定的话题。由于极地地区的冰块减少，海平面加速上升是一个主要问题，因为它会导致沿海洪水增加，影响数百万人。这个项目将揭示埋在南极洲阿蒙森海海底下的一个独特的地质档案，它将揭示南极西部冰盖在过去温暖气候下的表现。这些数据和见解可用于沿海政策制定中使用的冰盖和海洋模型。该项目还将支持培养具有竞争力的美国STEM劳动力。地质学入门课程的在线课堂练习将为合格的学生进入本科研究项目提供一个门户，该项目将通过资助当前女博士生的教育来提高女性对科学的参与。该项目的目标是在上新世早期沉积记录中，南极西部冰盖在几个冰期-间冰期旋回的长期变化，这些沉积记录是由国际海洋发现计划（IODP）第379队在阿蒙森海钻探的。数据收集包括：1)阿蒙森海和南极半岛地区冰碛碎屑和陆架碎屑岩的砂源及其来源；2)根据粒度记录和电流强度和相互作用的重建计算沉积结构和可分选泥沙；3)与阿蒙森海陆架的现有数据相比，大陆隆起沉积物的大部分物源与南极底水形成途径的下坡流调查相比较。结果在反射光谱和比色法（RSC）和x射线荧光扫描仪（XRF）数据的旋回地层框架内进行分析，以深入了解高纬度过程的轨道强迫。根据深海稳定同位素和海表温度记录，上新世早期的气候适宜期（PCO）为4.5 ~ 4.1 Ma，是一个主要的暖期。这一时期也与全球平均海平面达到20英尺的高点相吻合，这需要南极洲的冰块损失。以下假设将得到验证：1)在PCO ~4.5 Ma开始时，由于次冰架融化和冰山崩解的增加，西南极冰盖从大陆架撤退；2)在~4.5 Ma之后，由于冰架在冰川终止期间暴露，密集的大陆架水通过斜坡通道瀑布状下降。该项目将首次揭示在目前的“冰窖”时期（3.3 Ma）开始之前，南极西部冰盖是如何在更温暖的气候状态下运作的。