Events Archive

Solid Earth Brown Bag - Joshua Murray
Thu, Apr 11, 2024, 12:30 pm1:20 pm

Over geologic timescales Earth's climate has varied between periods of warm (ice-free) and cold (glacial). Understanding the drivers of these secular changes is integral to understanding the habitability of planets, feedbacks in the modern climate, and the evolution of life. Through a coupled model of mineral weathering and the carbon cycle, I…

Location
Guyot Hall 220
Speaker
Solid Earth Brown Bag - Greg Hirth
Thu, Mar 28, 2024, 12:30 pm1:20 pm

Rheology of the Interface between the Mantle Wedge and the Subducting Slab

Professor Hirth will present results from experimental studies and the application of lab constraints to subduction zone conditions near the base of the seismogenic zone. Topics will include lab studies on the rheological behavior of serpentinite (Burdette and…

Location
Guyot Hall 220
Speaker
Solid Earth Brown Bag - Hejun Zhu
Thu, Feb 15, 2024, 12:30 pm1:20 pm

In this presentation, I will demonstrate the applications of coda wave interferometry in exploring the dynamic response of the Earth to various environmental processes. The focus will be on measuring relative seismic velocity changes, indicative of near-surface fluctuations influenced by factors such as temperature, pore space, water saturation,…

Location
Guyot Hall 220
Speaker
Solid Earth Brown Bag - Steven Jaret
Thu, Feb 8, 2024, 12:30 pm1:20 pm

Host: Jeff Gay

Bring your lunch.  Snacks served.

Location
Guyot Hall 220
Speaker
Solid Earth Brown Bag - Megan Newcombe
Thu, Nov 16, 2023, 12:30 pm1:30 pm

The timing of delivery and the types of bodies that contributed volatiles to the terrestrial planets remain highly debated. For example, it is unknown if differentiated bodies, such as that responsible for the Moon-forming giant impact, could have delivered substantial volatiles, or if smaller, undifferentiated objects were more likely vehicles…

Location
Guyot 220
Speaker
Solid Earth Brown Bag - Joshua Garber
Thu, Nov 2, 2023, 12:30 pm1:30 pm

Metamorphic soles of ophiolites record intraoceanic thrusting that may eventually lead to self-sustained subduction. In the archetypal Samail Ophiolite (Oman/UAE), the timing and duration of sole metamorphism have been controversial, with different methods yielding divergent results. For example, zircon U-Pb TIMS dates suggest that granulite…

Location
Guyot 220
Speaker
Solid Earth Brown Bag - Robert Seal
Thu, Oct 12, 2023, 12:30 pm1:30 pm

Abstract:

A sustainable, zero-carbon future will rely on critical mineral commodities mined from the earth even though not all of society embraces mining, particularly in the United States. Mineral criticality is based on supply risk and the United States depends on foreign sources for many of the mineral commodities needed for…

Location
Guyot 220
Speaker
Solid Earth Brown Bag - Dan Shim
Thu, Oct 5, 2023, 4:30 pm5:30 pm

Short Bio: Dan Shim is the Navrotsky Professor of Materials Research at the School of Earth and Space Exploration at Arizona State University. His research interests encompass the physical and chemical properties of materials at high pressures and temperatures, and their implications for the structure and evolution of Earth and planetary…

Location
Guyot 220
Speaker
Solid Earth Brown Bag - Jennifer Middleton
Thu, Sep 28, 2023, 12:30 pm1:30 pm
Location
Guyot 220
Speaker
Solid Earth Brown Bag - Michelle Muth
Thu, Apr 20, 2023, 12:30 pm1:20 pm

Sulfur in volcanic arc magmas is an important tool for monitoring volcanic hazards and strongly influences the formation of porphyry ore deposits. Despite its importance, the extent to which subduction influences the sulfur content of arc magmas is debated. In this talk, I use direct measurements of sulfur isotope ratios and sulfur valence…

Location
Guyot Hall 220
Speaker