IRES: Late Paleozoic Gondwanan Ecosystems

IRES：晚古生代冈瓦纳生态系统

• 批准号: 1559231
• 负责人: John Isbell
• 金额: $ 24.95万
• 依托单位: University of Wisconsin-Milwaukee
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2022-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1559231&HistoricalAwards=false
• 关键词: IRES; Late; Paleozoic; Gondwanan; Ecosystems

Nontechnical:The late Paleozoic ice age (LPIA) was the longest, most widespread glacial interval on Earth after complex, multicellular organisms evolved. Despite the significance of this time interval for understanding contemporary global change, it is understudied in non-tropical regions of Pangea. It is of fundamental importance to establish a deep-time perspective on changing paleoecosystems to predict future perturbations in global systems. We will train future Earth scientists in hypothesis-driven, field-based research in Argentina. The scientific research objectives will be met using fossils, sedimentary rocks, and the geochemistry of these rocks and fossils. Outreach activities aimed at increasing the participation of traditionally underrepresented groups in the Geosciences form the core of the broader impacts of the project. Technical:We proposed a multi-faceted program of research and student mentorship on late Paleozoic ice age (LPIA) paleoecosystems. The LPIA is regarded as the best pre-Quaternary analogue for contemporary global change. Despite the significance of this time interval in the climate history of Earth, our understanding of the response of marine and terrestrial ecosystems to late Paleozoic climate and environmental change remains poorly understood. Our multidisciplinary research will include paleoecological, geochemical, and stratigraphic analyses on extensively preserved floral and faunal fossils in southern and western Argentina. To recruit a broader cross section of the diverse SE Wisconsin area to the Geosciences, our rigorous recruitment and training strategy involves new outreach programs created by the PIs and leveraging existing multi-institutional collaborations. Different cohorts of undergraduate and graduate students will travel with the PIs to Argentina for up to 4 weeks each year to conduct research on paleoclimatic and paleoecologic change during the LPIA. Respected Argentinian specialists will provide expertise on different aspects of LPIA paleoecosystems, including biostratigraphy.

非技术性：晚古生代冰河时代（LPIA）是复杂的多细胞生物进化后地球上最长，最广泛的冰川间隔。尽管这个时间间隔对于理解当代全球变化具有重要意义，但在泛古陆的非热带地区，这一时间间隔的研究却不足。建立一个关于变化中的古生态系统的深时间观点，以预测全球系统中未来的扰动，具有根本的重要性。我们将在阿根廷培训未来的地球科学家进行假设驱动的实地研究。科学研究目标将通过化石、沉积岩以及这些岩石和化石的地球化学来实现。旨在增加传统上代表性不足的群体对地球科学的参与的外联活动构成了该项目更广泛影响的核心。技术：我们提出了一个多方面的研究和学生导师晚古生代冰期（LPIA）古生态系统的计划。LPIA被认为是现代全球变化的最佳前第四纪模拟。尽管这一时间间隔在地球气候史上具有重要意义，但我们对海洋和陆地生态系统对晚古生代气候和环境变化的反应仍然知之甚少。我们的多学科研究将包括对阿根廷南部和西部广泛保存的植物和动物化石的古生态学，地球化学和地层分析。为了招募多元化SE威斯康星州地区的更广泛的横截面到地球科学，我们严格的招聘和培训策略涉及由PI创建的新的外展计划，并利用现有的多机构合作。不同的本科生和研究生群体将与PI一起前往阿根廷，每年长达4周，在LPIA期间进行古气候和古生态变化的研究。尊敬的阿根廷专家将提供LPIA古生态系统不同方面的专业知识，包括生物地层学。

项目成果

Detrital zircon geochronology and provenance of glaciogenic strata of the Middle Carboniferous San Eduardo Formation, Calingasta-Uspallata Basin, NW Argentina

阿根廷西北部卡林加斯塔-乌斯帕亚塔盆地中石炭统圣爱德华多组冰川成因地层的碎屑锆石年代学和物源

• DOI: 10.1130/abs/2019am-337940
• 发表时间: 2019
• 期刊: Geological Society of America Abstracts with Programs
• 作者: Malone, J. E.

Interpreting detrital modes and geochemistry of sandstones from the late Paleozoic Tepuel-Genoa Basin: Paleogeographic implications (Patagonia, Argentina)

解释晚古生代特普埃尔-热那亚盆地砂岩的碎屑模式和地球化学：古地理意义（阿根廷巴塔哥尼亚）

• DOI: 10.1016/j.jsames.2020.102858
• 发表时间: 2020
• 期刊: Journal of South American earth sciences
• 影响因子: 1.8
• 作者: Ciccioli, P. L.;Limarino, C. O.;Isbell, J.L.;Taboada, A. C.;Pagani, M. A.;Gulbranson, E.L.
• 通讯作者: Gulbranson, E.L.

A paleoclimatic reconstruction of the Carboniferous-Permian paleovalley fill in the eastern Paganzo Basin: Insights into glacial extent and deglaciation of southwestern Gondwana

帕甘佐盆地东部石炭纪-二叠纪古谷充填物的古气候重建：对冈瓦纳西南部冰川范围和消融的见解

• DOI: 10.1016/j.jsames.2019.102236
• 发表时间: 2019
• 期刊: Journal of South American Earth Sciences
• 影响因子: 1.8
• 作者: Pauls, Kathryn N.;Isbell, John L.;McHenry, Lindsay;Limarino, C. Oscar;Moxness, Levi D.;Schencman, L. Jazmin
• 通讯作者: Schencman, L. Jazmin

Late Paleozoic Glaciation

晚古生代冰川期

• DOI: 10.1016/b978-0-08-102908-4.00063-1
• 发表时间: 2021
• 期刊: 978-0-08-102909-1
• 作者: Rosa, E.L.M.;Isbell, J.L.
• 通讯作者: Isbell, J.L.

Constraining late paleozoic ice extent in the Paganzo basin of western Argentina: Provenance of the lower Paganzo group strata

限制阿根廷西部帕甘佐盆地晚古生代冰范围：下帕甘佐群地层的来源

• DOI: 10.1016/j.jsames.2020.102899
• 发表时间: 2021
• 期刊: Journal of South American Earth Sciences
• 影响因子: 1.8
• 作者: Pauls, Kathryn N.;Isbell, John L.;Limarino, C. Oscar;Alonso-Murauga, Pablo J.;Malone, David H.;Schencman, L. Jazmin;Colombi, Carina E.;Moxness, Levi D.
• 通讯作者: Moxness, Levi D.