GSW 1540: magnetic rocks, Everglades management, space resources

http://www.gswweb.org/index.php/2019/02/20/gsw-1540/

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
http://www.gswweb.org

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Peter Brannen and Annie Proulx at the Library of Congress

https://www.eventbrite.com/e/climate-change-nature-and-the-writers-eye-tickets-54610784326

Science writer Peter Brannen and internationally acclaimed novelist Amitav Ghosh join 2018 Library of Congress Prize for American Fiction winner Annie Proulx to discuss pressing issues of environmental change and a writer’s responsibilities to them. Book sales and signing to follow.

Tickets are required for entry to this FREE event. Seating is limited and available on a first-come, first-served basis. Entry is not guaranteed. Latecomers will be seated at the discretion of house management.

Please request ADA accommodations at least five business days in advance by contacting (202) 707-6362 or ada@loc.gov.

This event will be recorded for future presentation as a webcast on the Library of Congress website.

Date and Time

Wed, March 20, 2019

7:00 PM – 9:30 PM EDT

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Location

Coolidge Auditorium

Thomas Jefferson Building

10 First Street SE

Washington, DC 20540

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AEG: Hastings on vibrations from driven piles

Association of Environmental & Engineering Geologists

D.C. – Maryland – Virginia Chapter (www.aeg-bwh.org)

Thursday, February 21, 2019, from 5:00 PM to 8:00 PM at Brewer’s Alley in Frederick, MD.

AEG Members $40, Non-members $45; Includes dinner. Student and retiree member discounts available). Please register by Monday, February 18, via online payment (http://www.aeg-bwh.org/e-pay).

Presenters:  Patrick T. Hastings, C.P.G. and David K. Miller, C.P.G.; Seismic Surveys, Inc.

Title:  Vibrations from Driven Piles

Driven piles for deep foundations are an economical and effective method for supporting structures in challenging geologic conditions. Quite often, this foundation method is necessary in congested areas with existing structures, that must be protected from damage, nearby. Pile driving is safely conducted every day near existing structures; however, ground vibrations are a by-product of this pile installation method and they must be controlled to minimize the risk of damage to nearby structures and to defend against unwarranted claims. This presentation discusses the types of vibrations from various driving methods, why these vibrations are a concern, industry standards for controlling vibrations to below damaging levels, liability protection measures, and prediction of vibration effects before driving piles.

Patrick T. Hastings, Jr., C.P.G. is a Senior Geophysicist/Project Manager with Seismic Surveys, Inc. Patrick has his M.S. in Geology and Geophysics from University of Minnesota at Twin Cities. His did his undergraduate studies in Geology at University of Michigan at Ann Arbor. He is a Certified Professional Geologist in Virginia. Since 2013, he has specialized in the field of Blasting Seismology with Seismic Surveys, Inc. in Frederick, MD. His expertise includes vibration and sound monitoring and control, pre- and post-construction structure inspections, and use of geotechnical and structural instrumentation.

David K. Miller, C.P.G. is the President/Principal Geologist of Seismic Surveys, Inc. David has his B.S. in Geology from University of Maryland. He is a licensed Professional Geologist in Florida, New York, Pennsylvania, South Carolina, and Virginia. Since 1989, he has specialized in the field of Blasting Seismology. He founded Seismic Surveys, Inc. in Frederick, MD in 2001.

**Special Presentation: State of AEG by Dave Fenster, AEG National President

Dave Fenster will provide an informal update on the “State of AEG” and plans for the future. He would like to have a discussion and gather feedback from members on their priorities regarding improvements to AEG.

Please refer to our meeting announcement for full details (https://mailchi.mp/03f086ed018c/aeg-dmv-meeting-thurs-feb-21-2019).

UMD Geology: Kring on Chixculub crater discovery

2019 Geology Colloquium Series

Friday, February 22nd 2019 at 3:00 pm
in PLS 1140

David Kring
USRA – Lunar and Planetary Institute

The Discovery of the Chicxulub Crater and Recent Insights from IODP-ICDP Expedition 364

The discovery of the Chicxulub impact crater added tremendous credibility to the impact-mass extinction hypothesis.  That discovery led, in turn, to detailed studies of the impact’s environmental effects.  More recently, deep subsurface drilling by IODP and ICDP provided an opportunity to study the formation of the extraordinary ~180 km diameter basin, which shattered the Yucatan Peninsula, causing once immobile granite to flow in excess of a hundred kilometers an hour.  The heat of the impact spawned a vast hydrothermal system that persisted for about a million years.  That hydrothermal system is currently being used as a proxy for Hadean Earth systems that may have hosted Earth’s earliest life.

Kirk Johnson at Politics & Prose

Kirk R. Johnson – Cruisin’ the Fossil Coastline: The Travels of an Artist and a Scientist Along the Shores of the Prehistoric Pacific

Sunday, February 3, 2019 – 3 p.m. to 4 p.m.

Johnson’s sequel to Cruisin’ the Fossil Freeway takes readers up the Pacific coast from Mexico to Alaska in search of fossils and the people fascinated with them. Again partnering with the artist Ray Troll, Johnson, a paleobotanist and the Sant Director of the Smithsonian’s Museum of Natural History, flies, boats, and drives through one of the richest troves of fossils on the continent. He visits museums and labs as well as the far-flung sites that have turned up creatures like pygmy mammoths, oyster bears, immense ammonites, shark-bitten camels, polar dinosaurs, Alaskan palms, California walruses, and a lava-baked rhinoceros. A combination field trip, adventure, and graphic novel, the book is a masterful celebration of the wonders of the geologic record.

This event is free to attend with no reservation required. Seating is available on a first come, first served basis.
Click here for more information.

5015 Connecticut Ave NW   Washington   DC    20008

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
http://www.gswweb.org

PGS: Purucker on magnetic fields and planetary lithospheres

The role of magnetic fields as fingerprints of processes in planetary lithospheres
by Michael Purucker, NASA GSFC

Mapping of the lithospheric magnetic field is a geologic and exploration tool in the terrestrial environment. The magnetic method has contributed to plate tectonic theory, oil & gas exploration, structural geology, and geologic mapping. I will discuss the interpretation of the most recent high resolution lithospheric magnetic models for the Earth, Moon, Mars, and Mercury; discuss possible improvements using pre-existing data, and discuss new missions and approaches.

Dr. Michael Purucker is the Chief of the Planetary Magnetospheres Lab at the NASA Goddard Space Flight Center.  He is a geophysicist involved in charting and understanding the multitude of magnetic fields encountered around the planets and their moons.  He produced the first global magnetic model of the Moon and Mars and was one of the leaders of the first World Digital Magnetic anomaly map of the Earth.  Previously, he was the Chief Geologist responsible for the interpretation of an aeromagnetic survey of Saudi Arabia that focused on identifying a sedimentary basin southeast of Riyadh that was subsequently determined to host a super-giant gas field.  Mike currently serves in leadership roles relating to the field of geophysics at NASA, AGU, the Geological Society of Washington, and the IUGG/World Digital Magnetic Anomaly Map.  Mike earned a B.S. in Geoophysics and an M.S. in Planetary Science from the California Institute of Technology and a Ph.D. in Geological Sciences from Princeton University.
The PGS meeting location is within one-half mile of the Tysons Corner Metro station, near I-495, and has free parking available.  Our private meeting room is located on the second floor of the hotel.  The optional dinner cost will be discounted to $30 for members in good standing (have paid dues), $10 for students, and $40 for non-members, and is inclusive of coffee, tax and gratuity.  Drinks may also be purchased in the private meeting room on a cash basis.  Members and guests may attend the presentation after dinner for no charge; we estimate that the presentation will begin at 8:15 p.m.  For attendees who arrive early, social time will be held in the temporary pub at the rear of the Orchard Cafe on the second floor of the DoubleTree by Hilton hotel.

In summary:
Social Time: 6:00-7:00 p.m., temporary pub, Orchard Cafe, second floor DoubleTree by Hilton
Dinner: 7:00-8:15 p.m., Dogwood Room*, second floor DoubleTree by Hilton

Meeting & Presentation: 8:15-9:30 p.m., Dogwood Room*, second floor DoubleTree by Hilton
*Not our usual meeting room — this room is located near the elevators; please see the map on the meeting flyer.
Future meeting dates: Mar. 14, Apr. 11, May 16 (joint w/AEG)