MONG-HAN HUANG, University of Maryland, College Park – A Novel Bayesian Near-Surface Geophysics Approach to Constrain Material Properties and their Links to Natural Hazards in Central Puerto Rico
KARIN LEHNIGK, NASA Goddard Space Flight Center – The Kakhovka Dam Break Flood: An Unprecedented View of Earth’s Most Powerful Floods
CALEB FASSETT, Johns Hopkins University Applied Physics Lab – Geomorphic Evolution of the Moon
Refreshments at 7:30 p.m., formal program at 8:00 p.m., John Wesley Powell Auditorium, 2170 Florida Avenue NW, Washington D.C.
If anyone has announcements or informal communications they would like to share with the society, please e-mail Vedran Lekic (ved@umd.edu) ahead of time.
Comments Off on Wed. Oct 1: GSW Meeting at the Cosmos Club
Posted onSeptember 17, 2025bygsw|Comments Off on Draft minutes from Sept 10th meeting (1612th GSW)
The draft minutes of our last meeting, on 10 September 2025, are attached for members to evaluate. If you have any additions or corrections please email them to our meeting secretary, Jessie Bersson, at BerssonJ[at]si.edu.
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COLIN JACKSON, Tulane University and AAAS STP Fellow at DOE – Experimental magma oceans and volatile depletion of rocky worlds
KATHLEEN MANDT, NASA Goddard Space Flight Center – How volatile composition can reveal the sources of water on the Earth and Moon
PATRICK BEAUDRY, Johns Hopkins University – The volatile redox budget of slab fluids and oxidation of the mantle wedge
Refreshments at 7:30 p.m., formal program at 8:00 p.m., John Wesley Powell Auditorium, 2170 Florida Avenue NW, Washington D.C.
If anyone has announcements or informal communications they would like to share with the society, please e-mail Vedran Lekic (ved@umd.edu) ahead of time.
Comments Off on Wed., Sept. 10 – GSW Meeting at Cosmos Club
Posted onMay 22, 2025byDaniel Doctor|Comments Off on GSW Spring Field Trip!: June 28, Rock Creek Park
We are pleased to invite you to the Spring Geological Society of Washington Field Trip on Saturday, June 28th to Rock Creek Park! This engaging trip will be led by Callan Bentley, former GSW president and Associate Professor of Geology at Piedmont Virginia Community College.
Photo: National Park Service
The event will include an approximately 3-hour walking tour of the National Zoo lower region and Rock Creek Park area. Geologic themes of the trip will include Paleozoic tectonic history of the DC region with sites including the Rock Creek Shear Zone, Darton Fault and more!
Trip Details:
Location: Rock Creek Park and National Zoo lower region
Duration: Approximately 3-hour walking tour
Date: June 28th, 2025
Time:8:00am to 11am-ish
Meeting point: Lower (Beach Drive) entrance to the Zoo (Right across the street from Harvard Towers which are located at 1845 Harvard St NW, Washington DC 20009)
Public Transportation options: Nearest metro stations are Columbia Heights (green line) and Woodley Park (red line). And there are also Capital Bike Share rack there. We may also organize a carpool or metro group for any Northern Virginia/Reston/USGS participants who may want travel as a group.
*Please note the trip will involve approximately 2.5 miles of walking and standing on sidewalks and unpaved forest trails. Please dress accordingly and plan to bring snacks and water.
Posted onMay 16, 2025bygsw|Comments Off on Draft minutes from May 14th meeting (1611th GSW)
The draft minutes of our last meeting, on 14 May 2025, are attached for members to evaluate. If you have any additions or corrections please email them to our meeting secretary, Jessie Bersson, at BerssonJ[at]si.edu.
Comments Off on Draft minutes from May 14th meeting (1611th GSW)
Posted onMay 7, 2025bygsw|Comments Off on Draft minutes from April 30th meeting (1610th GSW)
The draft minutes of our last meeting, on 30 April 2025, are attached for members to evaluate. If you have any additions or corrections please email them to our meeting secretary, Jessie Bersson, at BerssonJ[at]si.edu.
Comments Off on Draft minutes from April 30th meeting (1610th GSW)
Posted onMay 5, 2025byDaniel Doctor|Comments Off on May 14 – GSW in-person meeting at Cosmos Club
Theme of the event: Ancient Earth
IOAN LASCU, Smithsonian National Museum of Natural History – Magnetofossils: Relicts of Deep Time?
CECELIA SANDERS, Smithsonian National Museum of Natural History – Relating Paleoecology and Phosphorite Formation across Deep Time
DANIEL SEGESSENMAN, George Mason University – Geology’s Greatest Hits: The North American Rock Record Remastered
Refreshments at 7:30 p.m., formal program at 8:00 p.m., John Wesley Powell Auditorium, 2170 Florida Avenue NW, Washington D.C.
If anyone has announcements or informal communications they would like to share with the society, please e-mail Vedran Lekic (ved@umd.edu) ahead of time.
Comments Off on May 14 – GSW in-person meeting at Cosmos Club
Posted onApril 11, 2025bygsw|Comments Off on Draft minutes from April 9th meeting (1609th GSW)
The draft minutes of our last meeting, on 9 April 2025, are attached for members to evaluate. If you have any additions or corrections please email them to our meeting secretary, Jessie Bersson, at BerssonJ[at]si.edu.
Comments Off on Draft minutes from April 9th meeting (1609th GSW)
Posted onApril 11, 2025byDaniel Doctor|Comments Off on April 30th – GSW meeting at Carnegie Earth and Planets Laboratory
**The meeting will be preceded by a poster session for early career participants, starting at 6:30 pm.** Formal talks will be broadcast via Zoom and will start at 8 pm and be 20 minutes each with questions to follow. To attend virtually, please register for the Zoom meeting at this link by 4:00 pm April 30th:
Theme of the event: Rock Deformation and Tectonics
RYAN McALEER, USGS – Microtextures and Microchemistry in Retrograde Shear Zones: Implications for Geochronology, Deformation Mechanisms, and Rock Strength
WENLU ZHU, University of Maryland, College Park – Effect of Partial Melt on Seismic Wave Velocity of Mantle Peridotite
EMILY MARTIN, National Air and Space Museum – Dione’s Tectonic History and Evidence for a Global Subsurface Ocean
***THIS IS AN IN-PERSON MEETING ONLY***
Refreshments at 7:30 p.m., formal program at 8:00 p.m.
John Wesley Powell Auditorium, 2170 Florida Avenue NW, Washington D.C.
Comments Off on April 9th – GSW meeting at Cosmos Club
Hey GSW Members! You’re eligible for GeoCare insurance. GeoCare provides health, life and other insurance products to members of 10 geoscience societies, including GSW. From their home webpage (), just click on the GSW block to see your options.
Preserved footprints in Kenya appear to record two different species of ancient humans walking over the same muddy lakeshore, probably within days of each other.
