Volume 24 No. 47

November 17, 2020

Jobs & Opportunities

PhD Candidate Position - Université Laval

Université Laval is seeking a highly motivated candidate to carry a PhD project to understand the regional magmatic and tectonic evolution of the Upper Beaver Cu-Au deposit (Larder Lake, Ontario). This project is in conjunction with four additional PhD and MSc projects which have commenced.

Specifically, the PhD candidate will investigate the regional magmatic and tectonic evolution of the Upper Beaver deposit area, with particular emphasis on the origin of the Upper Beaver intrusive suite origin, its magmatic evolution, and its geochronology. The study will apply a suite of advanced methods including lithogeochemistry, radiogenic isotopes, melt inclusions and in situ mineral chemical and isotope composition (e.g., zircon, apatite). The PhD project will involve several field mappings campaigns. Previous experience in Archean terranes mapping, U-Pb zircon geochronology (LA-ICP-MS and/or TIMS), and magmatic petrology will be an asset. The candidates will be encouraged to conduct original research and to present it in national and international conferences.

Fluency in spoken and written English is mandatory and proficiency in French is beneficial, but not required. The PhD project is supported with a research scholarship of $25,000 per year for up to 4 years. The selected candidate will be enrolled at the University Laval (Québec) with a strong expected collaboration with Laurentian University (Sudbury). Expecting starting date of the project will be between February and April 2021.

Please submit your cv, transcript and motivation letter, BEFORE December 8 2020, to:
NSERC-Agnico Eagle Industrial Research Chair in Mineral Exploration Département de géologie et de génie géologique
Université Laval

Funded MS and PhD positions in Arctic Paleoclimate and Southwest US Dust Cycling - Northern Arizona University

Northern Arizona University is recruiting up to three graduate students (MS or PhD) for funded positions that begin in Fall 2021. They seek students to work on two collaborative, funded projects:

  1. Understanding modern dust cycling on the Colorado Plateau. Northern Arizona University is seeking a PhD student to study modern dust cycling on the Colorado Plateau by designing and implementing an innovative monitoring program and integrating the results with regional weather and climate models. This is a collaborative, privately-funded project in collaboration with the Emergent Climate Risk Lab at Cornell University, where there are opportunities for semester-long exchanges. Please email, or visit the opportunities page for more information.
  2. Rapid Arctic Warming project. NAU is seeking up to two students, in addition to two students at the University at Buffalo, to investigate patterns and processes controlling rapid warming events in the Arctic. This collaborative, NSF-funded project will use a combination of high-resolution proxy record generation, geochronology, proxy data synthesis, and climate modeling. There are opportunities to participate in semester-long exchanges between institutions, and in outreach activities in Buffalo and Flagstaff.  Further information can be found here and here, or email and/or .

NAU is looking for curious and highly motivated students with excellent communication skills in English (written and oral), and with experience with, or a strong interest in developing skills in, numerical modeling and scientific programming skills. They encourage candidates from groups underrepresented in the geosciences (including black, indigenous, and people of color) to apply; they are committed to creating an inclusive environment for all team members. Please email , or visit the opportunities page for more details.

News & Events

EOAS Colloquium: Cassandra Smith

Title: Sparks, Ash, & Fire: A Spatial Analysis of Volcanic Lightning within Eruption Clouds

Date & Time: Thursday, November 19th at 11:00am

Place: Zoom Room

Abstract:

The application of volcanic lightning for the detection and characterization of explosive eruptions is an exciting and developing field in remote sensing. Globally-detected volcanic lightning can be combined with plume modeling to help develop links between electrical phenomena, eruptive processes, and volcanic ash transport. In this talk I will discuss recent eruptions that had globally detected volcanic lightning, including Raikoke, Ulawun, Anak Krakatau, and Bezymianny. Specifically, the June 2019 eruption of Raikoke volcano in the Kuril Islands of Russia, produced 11 distinct ash clouds with 753 lightning strokes recorded. Most lightning occurred NW of the volcano (distances < 20 km), even though the eruption cloud traveled primarily East. Wind models during the eruption show low altitude (< 3km) winds blowing towards the NW. This may indicate that lightning NW of the vent was concentrated in the low altitude jet/column regions of the eruption cloud, or possibly in pyroclastic flows forming to the NW, rather than in the eastward-traveling buoyant umbrella region. This type of spatial distribution has sparked questions within the volcanic lightning community on what we can learn about eruption cloud ash transport and ice formation from globally detected volcanic lightning. I will discuss how we use the 1D numerical plume model Plumeria, the ash dispersion model Ash3D, and spatial distributions to analyze how volcanic lightning may be integrated into volcano monitoring.

EOAS Seminar: Cassandra Smith

Title: Open Discussion

Date & Time: Friday, November 20th at 11:00am

Place: Zoom Room

Description:

Cassandra Smith will run an open discussion on volcanic lightning, the remote sensing of volcanic lightning and whatever else folks want to discuss.

IOS Seminar: Nadja Steiner

Title: Collaboration on sea ice associated ecosystems and ecosystem services in a changing Arctic through BEPSII

Date & Time: Friday, November 20th at 10:15am

Place: Zoom Room

Abstract:

Biogeochemical Exchange Processes at Sea-Ice Interfaces (BEPSII) represents an international expert community on sea-ice biogeochemistry, endorsed by the international programs Surface Ocean Lower Atmosphere Study (SOLAS), Climate and Cryosphere (CLIC) and the Scientific Committee of Antarctic Research (SCAR). BEPSII focuses on understanding the intricate complexities of the sea-ice ecosystem and its changes in a changing climate through international and interdisciplinary collaboration. BEPSII is organized in task groups focussing on observational and modelling method development and intercomparison, data collation and research synthesis, as well as outreach and capacity building including a strong engagement of early career researchers. BEPSII's strength lays in its international scientific collaboration which lends credibility to the groups science outputs and policy relevant syntheses. Within the its 10 years of existence, BEPSII has managed to significantly advance our knowledge and understanding of sea-ice biogeochemical processes as well as it's global impact. Ongoing changes in the polar regions associated with climate change are affecting the ecosystems linked to sea ice and the services they provide to society, both in the northern and southern hemisphere. Changes in the Arctic vary regionally and may have both positive and negative impacts on human well-being through, for instance, fisheries, subsistence harvesting, Indigenous and local cultural activities and livelihoods, or tourism and recreation and due to changes in regulatory roles. Examples of recent policy relevant synthesis efforts outline the future of Arctic sea-ice biogeochemistry and ice-associated ecosystems, assess the role of sea ice in supporting ecosystems and ecosystem services (provisioning, habitat, cultural and regulatory), and evaluate implications of sea-ice management for Arctic biogeochemistry.

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