Category Archives: meetings

GSW 1541: Adirondack deglaciation, chondrite sulfides, post-Permian reptiles

WEDNESDAY, APRIL 3, 2019
MEETING 1541

AARON M. BARTH, Emory & Henry College
Deglacial thinning of the Laurentide Ice Sheet in the Adirondack
Mountains, New York, USA revealed by 36Cl exposure dating

SHERYL A. SINGERLING, U.S. Geological Survey
The Life and Times of Sulfides in CM Chondrites, from Nebular
Crystallization to Asteroidal Alteration

ADAM PRITCHARD, Smithsonian Institution’s National Museum
of Natural History
The origin and rise of the modern reptile groups and the Permo-
Triassic Transition

Meeting flyer to post at your institution – Share the love!

TALKS WILL BE 20 MINUTES w/ QUESTIONS TO FOLLOW
___________________________________
Refreshments at 7:30 p.m. Formal program at 8:00 p.m.
John Wesley Powell Auditorium
2170 Florida Avenue NW, Washington, DC
www.gswweb.org

GSW 1540: magnetic rocks, Everglades management, space resources

WEDNESDAY, MARCH 13, 2019
MEETING 1540

IOAN LASCU, Smithsonian Institution
Magnetic Trek Into Vortex: The Nature of Magnetic Carriers in Rocks Revealed

G. LYNN WINGARD, U.S. Geological Survey
The Application of Holocene Records to Resource Management: An Example from the Everglades

LAWRENCE D. MEINERT, Meinert Consulting, LLC
Space Resources – the Hype versus Reality

TALKS WILL BE 20 MINUTES w/ QUESTIONS TO FOLLOW

Meeting flyer to print & post at your institution – help spread the word!

__________________________________
Free & open to the public
Refreshments at 7:30 p.m. Formal program at 8:00 p.m.
John Wesley Powell Auditorium
2170 Florida Avenue NW, Washington, DC
www.gswweb.org

GSW 1539: mass extinctions, life of a plate, Greenland as moon analogue

WEDNESDAY, FEBRUARY 6, 2019
MEETING 1539

Peter Brannen, journalist and author
Earth’s Great Mass Extinctions, Past and Future

Helen Janiszewski, Carnegie Institution
The Birth and Death of a Plate:
What Offshore Instrumentation Teaches Us About Subduction Zones

Angela G Marusiak, University of Maryland
Exploring Icy Moons:
How Greenland can help us Understand Ice Covered Worlds

TALKS WILL BE 20 MINUTES w/ QUESTIONS TO FOLLOW

Meeting flyer to print & post at your institution – help spread the word!

__________________________________
Free & open to the public
Refreshments at 7:30 p.m. Formal program at 8:00 p.m.
John Wesley Powell Auditorium
2170 Florida Avenue NW, Washington, DC
www.gswweb.org

GSW 1538: stromatolites, space lasers, and lava dome collapse

WEDNESDAY, JANUARY 23, 2019
MEETING 1538

Erica Suosaari, Smithsonian Institution
Hamelin Pool, Shark Bay, Western Australia: A Microbial Carbonate Factory

June Wicks, Johns Hopkins University 
Planetary Exploration in the Age of Big Lasers

Janine Krippner, Concord University
Exceptionally Large Lava Dome Collapse Events and Block-and-Ash Flows: Hot and Fast Avalanches of Destruction

TALKS WILL BE 20 MINUTES w/ QUESTIONS TO FOLLOW

Meeting flyer to print and post – Help spread the word!

__________________________________
Refreshments at 7:30 p.m. Formal program at 8:00 p.m.
John Wesley Powell Auditorium
2170 Florida Avenue NW, Washington, DC
www.gswweb.org

GSW 1537: Jan. 9, 2019: Landslides, silicic magma in Iceland, and oceanic ridge melt focusing

Our next meeting will be Wednesday, January 9, 2019.

Speakers will be:

Dalia Kirschbaum, NASA – Finding the slippery slope: Opportunities to investigate landslides from space (cancelled due to the Government Shutdown)
Replaced with two 10-minute talks:

Insight at Mars: The Interior Exploration using Seismic Investigations, Geodesy and Heat Transport  by Nick Schmerr (University of Maryland)

Geological characteristics of Von Kármán crater, northwestern South Pole-Aitken basin: Chang’E-4 landing site region by Jim Head (Brown University)

Abraham Padilla, USGS – How to assemble a silicic magma system in the Icelandic crust

Joyce Sim, Carnegie Institution – Melt focusing beneath mid-ocean ridges

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Meeting flyer to print and post at your institution

__________________________________
Refreshments at 7:30 p.m. Formal program at 8:00 p.m.
John Wesley Powell Auditorium
2170 Florida Avenue NW, Washington, DC
www.gswweb.org

GSW 1536: Presidential address & 126th Annual Meeting

Meeting announcement: the 1536th meeting of the Geological Society of Washington will be the 2018 Presidential address:

Dr. Karen Prestegaard
University of Maryland, College Park

“How trees influence hydrological processes, weathering, and carbon fluxes in boreal forest soils”

Wednesday, December 5, 2018

The 1536th regular meeting will be followed by the 126th Annual Meeting of the Society. Members should review the draft minutes of the 125th annual meeting before attending, and send any corrections to Meeting Secretary Victor Zabielski at vzabielski@nvcc.edu.

__________________________________
Refreshments at 7:30 p.m. Formal program at 8:00 p.m.
John Wesley Powell Auditorium
2170 Florida Avenue NW, Washington, DC
www.gswweb.org

GSW meeting 1535 announcement

WEDNESDAY, NOVEMBER 7, 2018
MEETING 1535

Michael Walter, Carnegie Institution – Geophysical Lab
The Fate of Deeply Subducted Carbon

Jesse Reimink, Carnegie Institution – DTM
Probing the earliest continental crust-formation events known on Earth

Lorrie Coiner, Virginia DMME, Department of Geology and Mineral Resources
The State of the Commonwealth:  Virginia’s Mineral and Energy Resources

TALKS WILL BE 20 MINUTES w/ QUESTIONS TO FOLLOW

Meeting flyer to post and share

__________________________________
Refreshments at 7:30 p.m. Formal program at 8:00 p.m.
John Wesley Powell Auditorium
2170 Florida Avenue NW, Washington, DC
www.gswweb.org

GSW meeting 1534 announcement

WEDNESDAY, OCTOBER 24, 2018
MEETING 1534

PETER VAN KEKEN, Carnegie Institution
Linking metamorphic dehydration reactions with subduction zone earthquakes

ROSEMARY KILLEN, NASA
Mercury’s exosphere

RYAN HAUPT, Smithsonian Institution
Applying paleontological proxy methods to modern sloths: What can the odd mammal out tell us about their even odder fossil relatives?

TALKS WILL BE 20 MINUTES w/ QUESTIONS TO FOLLOW

Meeting flyer to post and share

___________________________________
Refreshments at 7:30 p.m. Formal program at 8:00 p.m.
John Wesley Powell Auditorium
2170 Florida Avenue NW, Washington, DC
www.gswweb.org

2018 Bradley lecture:

GSW meeting 1533: Wednesday, October 3

~ The 2018 Bradley lecture ~

Jane Willenbring
Scripps Institution of Oceanography
“Not Feeling the Buzz: Tectonics – Not Climate – Limits Heights of Mountains”

Mountains

The potential to rapidly denude topography at and above the glacier Equilibrium Line Altitude (ELA), irrespective of uplift rates, rock type or pre-existing topography, is explored in the glacial buzzsaw hypothesis. In this talk, I offer evidence from cosmogenic nuclide data and numerical models that (1) topography can persist in a state of transience for millions of years through feedbacks that can promote and maintain subdued topography dissected by valleys and that (2) the glacial buzzsaw cuts down–not across. Finally, we compiled tectonic, topographic, and erosion rate data from Arc-Continent convergent margins where the convergence rate is known (Andes, Central America, Cascadia, British Columbia, Alaska, Taiwan, and Makran). Erosion rates and elevation maxima and mean elevations correlate linearly with plate convergence rates. Importantly, mountain peaks in three heavily glaciated mountain ranges (Alaska, Cascadia, and South Chile) do not deviate from the trend of unglaciated mountain ranges such as the Central Andes and Taiwan. That mountain ranges with different climatic characteristics fall within the same trend implies that tectonics is the primary control of mountain range mass and heights–not glaciers.SIO_Willenbring_headshot250

Jane Willenbring is an Associate Professor at Scripps Institution of Oceanography, UC San Diego. She joined Scripps in the summer of 2016 and is the Director of the Scripps Cosmogenic Isotope Laboratory. She received her B.Sc. from North Dakota State University, where she was a McNair Scholar, and a Master’s degree from Boston University. She received her Ph.D. in Earth Sciences from Dalhousie University in Halifax, Nova Scotia Canada and was named an Izaak Walton Killam Laureate. She was a Synthesis Postdoctoral Fellow through the National Center for Earth-Surface Dynamics, and an Alexander von Humboldt Fellow at GFZ Potsdam, Germany. Jane was previously a professor at the University of Pennsylvania and a Blaustein visiting professor at Stanford University. She is a Fellow of the Geological Society of America and in 2016 was awarded an NSF Career grant.

Meeting flyer to print out & post at your institution

Beverages and socializing commence at 7:30pm.
The formal program starts at 8:00pm.
Meetings are open to the public; please join us!

We meet in the John Wesley Powell Auditorium of the Cosmos Club,
2170 Florida Avenue NW, Washington DC 20008.

Entrance is through the club gate, the first right-hand entrance on Florida Avenue north of the intersection with Massachusetts Avenue NW. The auditorium entrance is to the left of the gate. The Powell Auditorium is within walking distance of the DuPont Circle Metro stop (Q Street exit), the Connecticut Avenue bus routes (L2, L4), and the Massachusetts Avenue bus routes (N2, N4).

Meeting 1532 (Sept. 12) announcement

Danielle Sumy, IRISInduced earthquake hazard and risk in the United States
Megan Holycross, SmithsonianDiffusion in silicate melts: using atomic-scale processes to track magmatic events
Maya Gomes, Johns Hopkins UniversityEnvironmental Drivers of Extinction: the Early Jurassic Toarcian Oceanic Anoxic Event

Beverages and socializing commence at 7:30pm.
The formal program starts at 8:00pm.
Meetings are open to the public; please join us!

We meet in the John Wesley Powell Auditorium of the Cosmos Club,
2170 Florida Avenue NW, Washington DC 20008.

Entrance is through the club gate, the first right-hand entrance on Florida Avenue north of the intersection with Massachusetts Avenue NW. The auditorium entrance is to the left of the gate. The Powell Auditorium is within walking distance of the DuPont Circle Metro stop (Q Street exit), the Connecticut Avenue bus routes (L2, L4), and the Massachusetts Avenue bus routes (N2, N4).