Author Archives: Callan Bentley

Field Trip to the Karst of Eastern Loudoun County, Virginia

Field Trip to the Karst of Eastern Loudoun County, Virginia

Announcement from the BWH Section of the Association of Environmental & Engineering Geologists
Saturday, October 25, 2014, 9 AM – 2-3 PM
Rendezvous at 8:45 AM, @ Temple Hall Farm, 15789 Temple Hall Lane, Leesburg, VA

To reserve, please email Patrick Hastings no later than Noon, Thursday, October 23, 2014 at aegbwhsecretary and give me food selections.
PRIMARY RENDEZVOUS POINT
Meet us in the parking lot at 8:45 am at Temple Hall Farm Park is 15789 Temple Hall Lane, Leesburg, VA

****************************************************************
Karst of Eastern Loudoun County
Trip Organizers:
Steve Stokowski & Dave Fenster
ABSTRACT:
AEG-BWH is having a karst geology field trip in and around Leesburg, VA. It will highlight and discuss the Loudoun County Limestone Area District. This was recently back in the news because of continuing contamination of groundwater drinking wells at two developments north of Leesburg. The caves and karst in eastern Loudoun County are developed in the Potomac Marble, an unusual and beautiful limestone conglomerate historically used for dimension stone. Stops will include:
1)Sinkholes and an arch at Temple Hall Farm
2)The largest spring in the Leesburg area
3)The site where a large geophysical survey detected major subsurface karst features
4)Amazing outcrops at Ida Lee Park
5)Caves in Balls Bluff.
Included are lunch, soft drinks, and a field trip guide written by Steve, Dan Doctor (USGS), and Dave Fenster (Bechtel).

Cost: $40/person (checks or cash accepted at start of field trip
Provided: Printed field guide (17+pages), subs from Jimmy Johns, and drinks of your choice!
Must Bring/Wear: Sturdy shoes with non-slip soles for off trail hiking and scrambling on loose slopes
Attendee Limit: 35
Lunch Choices:
The Jimmy Johns choices that we are going to offer are:
Ham and Provolone
Roast Beef
Turkey
Vegetarian
These come with a pickle, chips, and a cookie. Sodas, water, and similar drinks on ice will be provided.
The default will be roast beef.

RESERVATIONS:
To reserve, please email Patrick Hastings no later than Noon, Thursday, October 23, 2014 at aegbwhsecretary and give me food selections.
PRIMARY RENDEZVOUS POINT
Meet us in the parking lot at 8:45 am at Temple Hall Farm Park is 15789 Temple Hall Lane, Leesburg, VA
We will meet at 8:45 AM. If you are running late and do not make the rendezvous point, you may call Steve’s cell phone for directions:
Steve Stokowski at 508-259-3536

GSW 1448: a special meeting in honor of E-an Zen

Special meeting, in honor of E-an Zen

Wednesday, 29 October 2014

Daniel Doctor, USGS Reston

Title: Introduction to E-an Zen Career

Jane Hammarstrom, USGS Reston

Title: The Zen of Granites

Karen Prestegaard, University of Maryland

Title: Hiking and Thinking: Zen Studies in Geomorphology

Nicholas Ratcliffe, USGS Reston

Title: De Stratorvm Ordine, Terrae Geologica Forma……. in Parte Avstralis Regionis Taconicae. “The Taconics Zen to Now”

*********************************

Refreshments at 7:30 PM; Formal program at 8:00 PM

John Wesley Powell Auditorium, 2170 Florida Avenue NW, Washington, D.C.

Upcoming Meetings:

November 19th, December 10th, 2014; January 07, 2015

GSW website: http://www.gswweb.org

GSW fall field trip: Corridor H, West Virginia

GSW 2014 FALL FIELD TRIP:

A cross section through Appalachian geology along Corridor H

When: Saturday, November 8, 2014 (meet at 7:30 am, trip starts at 8:00 am, ends at sunset)

Where: Meet at the Wiehle Ave (Reston East) Silver Line Metro Station outdoor plaza on the north side of the Dulles Toll Road Hwy 267. Parking is FREE on weekends (but be sure you park in the Metro lot and not one of the private lots)! We will arrange carpooling there. If you can drive a vehicle, please email Dan Doctor ahead of time (dhdoctor@usgs.gov).

Cost: no cost for the trip, but bring a lunch, field clothes, and $$ for carpool gas donations.

PGS: Evolution of the Beaufort Sea

The October 16, 2014 meeting of the Potomac Geophysical Society will be held October 16 at the Fort Myer Officers’ Club in Arlington, VA (http://www.jbmhhmwr.com/index/Maps_and_Directions.html) in the Glassed-in room in the Fife and Drum (main dining room).

Seismic Evidence for the Geologic Evolution of the Alaska Beaufort Sea and Adjacent Canada Basin

Dave Houseknecht, U.S. Geological Survey, Reston, Virginia

Integration of 2-D reflection seismic, gravity, and sparse exploration well data from the offshore Alaska Beaufort shelf and slope provides new perspectives on the dynamic tectonic evolution of this Arctic margin. The Beaufort shelf is considered a rift shoulder that developed during Jurassic to Early Cretaceous opening of the Canada Basin, and previous work considered much of the pre-Cretaceous stratigraphy to have been eroded beneath the breakup unconformity. However, reprocessed and newly collected seismic data demonstrate the presence of highly attenuated crust and Jurassic to Lowermost Cretaceous syn-rift strata beneath much of the shelf. Moreover, older strata are present beneath the syn-rift succession, and these include Upper Paleozoic and perhaps Triassic strata, the latter of which may include oil-prone source rocks.

The north-vergent front of the Brooks Range thrust belt is extant beneath the eastern Beaufort shelf, and forms a tectonic wedge and syntectonic wedge-top basin system active since the Paleocene. Upper Paleozoic to Cretaceous strata are deformed by thrust faults and folds within this wedge, and reconstruction of syn-rift extension is difficult as a result. Paleocene through Pliocene strata display a spectrum of growth geometry beneath the shelf and slope, a reflection of syntectonic wedge-top deposition.

This ongoing research contributes to a better understanding of the tectonic evolution of the Alaska Arctic margin, and of the petroleum potential of the region. The results are being used to inform policy makers regarding a disputed maritime boundary between the U.S. and Canada, as well as potential extended continental shelf claims under the U.N. Convention on the Law of the Sea.

Biography

Dave Houseknecht is a research geologist with the U.S. Geological Survey (USGS) with a focus on basin analysis, geological controls of petroleum resource distribution, and petroleum resource assessment. This work is mainly concentrated in Arctic Alaska and adjacent Arctic regions. He frequently represents the USGS scientific perspective on petroleum resources in ANWR, NPRA, and other areas of Alaska and the global Arctic to the Administration and Congress. Dave joined the USGS in 1992, serving as Energy Program Manager through 1998 and then moving to a research position. Previously, Houseknecht was a professor of geology at the University of Missouri (1978-1992) and consultant to the oil industry (1981-1992), working on domestic and international projects. He received geology degrees from Penn State University (Ph.D. 1978, B.S. 1973) and Southern Illinois University (M.S. 1975).

Gate, open 24 hours a day (http://www.jbmhhmwr.com/index/Maps_and_Directions.html). Reservations are not necessary, however, we need a head count, so, if you wish to attend dinner ($25), please inform Bob Fraser at 540-888-3001 or via E-mail at fraser.robert@comcast.net. If you wish, please feel free to attend the talk without dinner. Non-members and guests are welcome. Visit the PGS web site at http://www.potomacgeophysical.com for new meeting announcements, etc. Please send changes of address or email to fraser.robert@comcast.net.

AEG Meeting, Emergency Retaining Wall Replacement, 26th Street, Baltimore, MD

Geologists and students:

I want to personally invite you and your colleagues to the October 16, 2014 AEG-BWH meeting featuring Joe Cavey of Hayward Baker and Jim Guinther, of Whitman, Requardt & Associates. Their talk concerns the collapse of the 26th Street retaining wall in Baltimore that was captured on cell-phone video. This dramatic event was seen on YouTube and all of the TV News channels. Every geologist should know be familiar with this very public issue and the actions taken to fix our crumbling infrastructure. The meeting is at Brewer’s Alley in Frederick. Please register immediately. Below is the notice.

Steve Stokowski, CPG
Chairman, AEG-BWH
508-259-3536

**********************

Notice of Meeting

Announcement from the BWH Section of the
Association of Environmental & Engineering Geologists

Date: Thursday Oct. 16, 2014

_www.aegweb.org_ (http://www.aegweb.org)
SECTION MEETING
Baltimore MD – Washington DC – Harrisburg PA

TOPIC: Emergency Retaining Wall Replacement, 26th Street, Baltimore, MD

Abstract:
After significant rainfall in Baltimore City on April 30, 2014, the
retaining wall between 26th Street and the CSX tracks collapsed. 26th Street was
closed between Charles Street and St. Paul Street while the roadway was
stabilized, utilities were replaced, and construction began for a new
retaining wall. The project consisted of constructing a temporary soldier pile
and lagging wall with 3 rows of anchors. Between the temporary support of
excavation and the railroad tracks, a new gravity retaining wall will be
constructed. The presentation includes discussion of the technical aspects of
the emergency response, the geotechnical design and the construction of the
replacement wall.

PRESENTERS: Joseph K. Cavey, P.E (Hayward Baker) and James Guinther,
P.E.,.(Whitman, Requardt & Associates)
Joe Cavey, a Vice President with Hayward Baker who manages the
Mid-Atlantic Area for the company. Joe has a Bachelors Degree in Civil Engineering
from Bucknell University and a Masters Degree in Civil Engineering from
Northwestern University. Joe is a registered professional engineer in Maryland.
Joe started with Hayward Baker 20 years ago where he worked on large
chemical grouting projects for the Washington Metro’s Green Line Tunnels. Joe
also worked on the Red Line Subway in Los Angeles where critical chemical
grouting was performed under the Hollywood Freeway prior to tunneling. Joe
has managed projects in all types of specialty geotechnical construction,
including compaction grouting, chemical grouting, jet grouting, cement
grouting, soil mixing, micropiles, dynamic compaction, vibro-replacement, vibro‑
concrete columns, and vibro-compaction. Joe managed several projects on
the Boston Central Artery, and recent large projects include: South Jersey
Gas Salem MGP Plant – the largest jet grout bottom seal constructed in the
U.S.; Virtua Health Voorhees Hospital Vibro‑Replacement – over 4,000 stone
columns in southern NJ; Geisinger Hospital Micropiles; and Mirant Soil
Mixing. Joe managed the Valero Frozen Earth Storage Decommissioning project at
the Valero Refinery in Delaware. This project was awarded the Best
Industrial/Manufacturing project in 2012 by ENR. Joe has authored or co-authored
over 10 papers on various subjects in geotechnical design and
construction. In his free time, Joe enjoys coaching youth lacrosse and basketball.
Jim Guinther, Vice President at Whitman, Requardt & Associates, LLP in
Baltimore, manages the design of various transportation projects and oversees
the bridge design/inspection group. Mr. Guinther earned a Bachelor’s and
Master’s Degree in Civil Engineering from Bucknell University and is a
registered Professional Engineer. Jim has 17 years of transportation planning and
design experience with an emphasis on structures. His work involves bridge
replacement and rehabilitation projects, including a variety of structures
ranging from timber, prestressed concrete beam, or steel girder bridges to
trusses, retaining walls, and tunnels for federal, state, and local county
agencies. In addition to his role as Project Manager for several Baltimore
City projects, including the 26th Street Emergency Reconstruction, he is
currently the lead structural engineering design manager responsible for the
oversight of the structural (horizontal and vertical construction);
geotechnical and tunnel design engineers for the $2.2 billion, 16-mile long Purple
Line Light Rail transit line project. The project includes 40 major
bridges/underpasses/culverts supporting pedestrian, light rail, and vehicular
loads; over 70,000 linear feet of retaining walls; 17 noise walls; and two
maintenance buildings/shops.

2014-15 AEG-BWH OFFICERS

Chair: Steve Stokowski, AEG BWH, (508) 259-3536, Ettringite@aol.com
Vice Chair: William Mikalik, Applied Environmental, Inc.,
703-282-0835, wmikalik@appenv.com
Secretary/Treasurer: Patrick Hastings, Seismic Surveys Inc.,
240-578-1981, AEGBWHSecretary@gmail.com

MEETING INFORMATION:

DATE: Thursday Oct. 16, 2014
TIME: 6:00 p.m. to 8:45 p.m.

LOCATION

Brewers Alley
124 N. Market Street
Frederick, MD 21701 (Downtown)

Here is the Google Map link to Brewers Alley. (or here:
https://maps.google.com/?daddr=124+North+Market+Street,+Frederick,+MD+21701,+USA&pw=0&t=h&z=16
); Parking is either where you can find it on the street, OR, there is a
multistory, municipal parking garage directly behind the restaurant (note
the long rectangular building east of Brewers Alley when you open the Google
Map/Satellite link). The clearance is approximately 6”8”, which is lower
than some vans/

Parking garage entrance is off Church Street, a one-way heading east. If
coming north on 355/N. Market Street (from I-270), cross over Patrick Street
(the divider between N & S street designations), and turn Right on Church,
and left into the garage. If exiting I-70 (from Balto, for ex), go north
on North on S. East Street, cross over canal, turn left on E. Patrick, Right
on Frederick and Right on Church into garage on left.

COST (dinner & mtg):
Bring personal or company check or cash to the meeting and pay treasurer
before presentation.
Members: $35
Non-members: $40
Students: $25

MEETING SCHEDULE:

6:00 to 7:00 pm Social, Networking and Registration
7:00 to 7:45 pm Dinner
7:45 to 8:45 pm Presentation, Questions, Closing Statements

RESERVATIONS:
To reserve a seat, please email Patrick Hastings by Thursday, October 9,
2014 at _AEGBWHSecretary@gmail.com_ (mailto:AEGBWHSecretary@gmail.com)

AEG-BWH 2014-15 Upcoming Meetings/Field Trips
October 25 (Saturday) – Field Trip to the Karst of Eastern Loudoun County
November 20 – Bill Roman of Gannett-Fleming
December 18 – AEG BWH Christmas Party
January 15 – Fred Davis, PhD. of The Smithsonian
February 19 – Employment Roundtable
March 19 – Presenter TBD
April 4 (Saturday) – AEG-BWH Spring Symposium (NEW! and at James Madison
University)
May 21 – Presenter TBD

AEG-BWH Meeting, September 18

Geologists and students:

I want to personally invite you and your colleagues to the October 16, 2014 AEG-BWH meeting featuring Joe Cavey of Hayward Baker and Jim Guinther, of Whitman, Requardt & Associates. Their talk concerns the collapse of the 26th Street retaining wall in Baltimore that was captured on cell-phone video. This dramatic event was seen on You-Tube and all of the TV News
channels. Every geologist should know be familiar with this very public issue and the actions taken to fix our crumbling infrastructure. The meeting is at Brewer’s Alley in Frederick. Please register immediately. Below is the notice.

Steve Stokowski, CPG
President, AEG-BWH
508-259-3536

**********************

Notice of Meeting

Announcement from the BWH Section of the
Association of Environmental & Engineering Geologists

Date: Thursday Oct. 16, 2014

_www.aegweb.org_ (http://www.aegweb.org)
SECTION MEETING
Baltimore MD – Washington DC – Harrisburg PA

TOPIC: Emergency Retaining Wall Replacement, 26th Street, Baltimore, MD

Abstract:
After significant rainfall in Baltimore City on April 30, 2014, the
retaining wall between 26th Street and the CSX tracks collapsed. 26th Street was closed between Charles Street and St. Paul Street while the roadway was stabilized, utilities were replaced, and construction began for a new
retaining wall. The project consisted of constructing a temporary soldier pile and lagging wall with 3 rows of anchors. Between the temporary support of excavation and the railroad tracks, a new gravity retaining wall will be constructed. The presentation includes discussion of the technical aspects of the emergency response, the geotechnical design and the construction of the replacement wall.

PRESENTERS: Joseph K. Cavey, P.E (Hayward Baker) and James Guinther, P.E.,.(Whitman, Requardt & Associates)
Joe Cavey, a Vice President with Hayward Baker who manages the
Mid-Atlantic Area for the company. Joe has a Bachelors Degree in Civil Engineering from Bucknell University and a Masters Degree in Civil Engineering from
Northwestern University. Joe is a registered professional engineer in Maryland. Joe started with Hayward Baker 20 years ago where he worked on large
chemical grouting projects for the Washington Metro’s Green Line Tunnels. Joe also worked on the Red Line Subway in Los Angeles where critical chemical grouting was performed under the Hollywood Freeway prior to tunneling. Joe has managed projects in all types of specialty geotechnical construction, including compaction grouting, chemical grouting, jet grouting, cement
grouting, soil mixing, micropiles, dynamic compaction, vibro-replacement, vibro‑ concrete columns, and vibro-compaction. Joe managed several projects on the Boston Central Artery, and recent large projects include: South Jersey Gas Salem MGP Plant – the largest jet grout bottom seal constructed in the U.S.; Virtua Health Voorhees Hospital Vibro‑Replacement – over 4,000 stone columns in southern NJ; Geisinger Hospital Micropiles; and Mirant Soil
Mixing. Joe managed the Valero Frozen Earth Storage Decommissioning project at the Valero Refinery in Delaware. This project was awarded the Best
Industrial/Manufacturing project in 2012 by ENR. Joe has authored or co-authored over 10 papers on various subjects in geotechnical design and
construction. In his free time, Joe enjoys coaching youth lacrosse and basketball. Jim Guinther, Vice President at Whitman, Requardt & Associates, LLP in Baltimore, manages the design of various transportation projects and oversees the bridge design/inspection group. Mr. Guinther earned a Bachelor’s and Master’s Degree in Civil Engineering from Bucknell University and is a
registered Professional Engineer. Jim has 17 years of transportation planning and design experience with an emphasis on structures. His work involves bridge replacement and rehabilitation projects, including a variety of structures ranging from timber, prestressed concrete beam, or steel girder bridges to trusses, retaining walls, and tunnels for federal, state, and local county agencies. In addition to his role as Project Manager for several Baltimore City projects, including the 26th Street Emergency Reconstruction, he is currently the lead structural engineering design manager responsible for the oversight of the structural (horizontal and vertical construction);
geotechnical and tunnel design engineers for the $2.2 billion, 16-mile long Purple Line Light Rail transit line project. The project includes 40 major bridges/underpasses/culverts supporting pedestrian, light rail, and vehicular loads; over 70,000 linear feet of retaining walls; 17 noise walls; and two maintenance buildings/shops.

2014-15 AEG-BWH OFFICERS

Chair: Steve Stokowski, AEG BWH, (508) 259-3536, Ettringite@aol.com Vice Chair: William Mikalik, Applied Environmental, Inc.,
703-282-0835, wmikalik@appenv.com
Secretary/Treasurer: Patrick Hastings, Seismic Surveys Inc., 240-578-1981, AEGBWHSecretary@gmail.com

MEETING INFORMATION:

DATE: Thursday Oct. 16, 2014
TIME: 6:00 p.m. to 8:45 p.m.

LOCATION

Brewers Alley
124 N. Market Street
Frederick, MD 21701 (Downtown)

Here is the Google Map link to Brewers Alley. (or here:
https://maps.google.com/?daddr=124+North+Market+Street,+Frederick,+MD+21701,+USA&pw=0&t=h&z=16 ); Parking is either where you can find it on the street, OR, there is a multistory, municipal parking garage directly behind the restaurant (note the long rectangular building east of Brewers Alley when you open the Google Map/Satellite link). The clearance is approximately 6”8”, which is lower than some vans/

Parking garage entrance is off Church Street, a one-way heading east. If coming north on 355/N. Market Street (from I-270), cross over Patrick Street (the divider between N & S street designations), and turn Right on Church, and left into the garage. If exiting I-70 (from Balto, for ex), go north on North on S. East Street, cross over canal, turn left on E. Patrick, Right on Frederick and Right on Church into garage on left.

COST (dinner & mtg):
Bring personal or company check or cash to the meeting and pay treasurer before presentation.
Members: $35
Non-members: $40
Students: $25

MEETING SCHEDULE:

6:00 to 7:00 pm Social, Networking and Registration 7:00 to 7:45 pm Dinner
7:45 to 8:45 pm Presentation, Questions, Closing Statements

RESERVATIONS:
To reserve a seat, please email Patrick Hastings by Thursday, October 9, 2014 at _AEGBWHSecretary@gmail.com_ (mailto:AEGBWHSecretary@gmail.com)

AEG-BWH 2014-15 Upcoming Meetings/Field Trips
October 25 (Saturday) – Field Trip to the Karst of Eastern Loudoun County November 20 – Bill Roman of Gannett-Fleming
December 18 – AEG BWH Christmas Party
January 15 – Fred Davis, PhD. of The Smithsonian
February 19 – Employment Roundtable
March 19 – Presenter TBD
April 4 (Saturday) – AEG-BWH Spring Symposium (NEW! and at James Madison University)
May 21 – Presenter TBD

AEG-BWH Meeting, September 18

Geologists and students:

I want to personally invite you and your colleagues to the September 18, 2014 AEG-BWH meeting featuring David Spears, the State Geologist of Virginia. His topic is one that every geologist should hear. The meeting is in Reston. Please register immediately. Below is the notice.

Steve Stokowski, CPG
President, AEG-BWH
508-259-3536

**********************

Notice of Meeting
Announcement from the BWH Section of the Association of Environmental & Engineering Geologists
Date: Thursday, Sept. 18, 2014
To reserve a seat, please email Patrick Hastings by Thursday, September 11, 2014 at AEGBWHSecretary

TOPIC: Geology and Public Policy – Recent Issues in Virginia
PRESENTER: David B. Spears, State Geologist, Virginia Department of Mines, Minerals and Energy.
David Spears is the State Geologist of Virginia, a position residing in the Department of Mines, Minerals, and Energy. He is responsible for coordinating the work of the Division of Geology and Mineral Resources, a small group of geoscientists focused on mapping Virginia’s geology, mineral resources, energy resources, and geologic hazards such as earthquakes, landslides, and sinkholes. In recent years, the State Geologist has played an increasing role in responding to public policy issues such as offshore drilling, natural hazards, and hydraulic fracturing. David received a BS in Geology from Lafayette College and a MS in Geology from Virginia Tech. He began his professional career in the petroleum industry before coming to Virginia state government in 1993. A native of New Jersey, he currently resides in Buckingham County in central Virginia.
ABSTRACT:
Government decision makers are faced with difficult choices when it comes to public policy regarding energy and mineral resources. Our nation is heavily dependent on fossil fuels, radioactive isotopes, and rare earth elements that often must be imported from foreign countries to meet U.S. demand. Even though developing our own domestic supplies has obvious strategic advantages, such development often conflicts with other societal priorities such as environmental protection and social justice. To further complicate matters, conflicting pressure is brought to bear on politicians by an uninformed or misinformed populace that is generally anti-development, and by pro-development businesses who have a financial interest in resource development. In this presentation, Virginia’s State Geologist will use recent, Virginia-specific examples such as uranium mining, offshore drilling, and shale gas to highlight the ways in which government-based geoscientists play a unique role in providing scientific guidance in public debates about how to best manage our nation’s energy and mineral resources.

MEETING INFORMATION:
DATE: Thursday, September 18, 2014
TIME: 6 p.m. to 9 p.m.
LOCATION and COST:
Paolo Ristorante (Inside The Reston Town Center) 11898 Market Street Reston, VA 20130 Note: There is a parking garage (clearance 6’8”) and a parking lot just to the North of the restaurant.
COST (dinner & mtg):
Members and non-members: $45
Students: $20

MEETING SCHEDULE:
6 p.m. to 7 p.m. Social Hour and Section Business
7 p.m. to 8 p.m. Dinner
8 p.m. Presentation
9 p.m. Closing Statements

RESERVATIONS:
To reserve a seat, please email Patrick Hastings by Thursday, September 11, 2014 at AEGBWHSecretary.

AEG-BWH 2014-15 Upcoming Meetings/Field Trips
October 16 – Presenter TBD
October 25 (Saturday) – Field Trip to the Karst of Eastern Loudoun County
November 20 – Presenter TBD
December 18 – AEG BWH Christmas Party
January 15 – Presenter TBD
February 19 – Employment Roundtable
March 19 – Presenter TBD
April 4 – (Saturday) – AEG-BWH Spring Symposium (NEW! and at James Madison University)
May 21 – Presenter TBD

2014-15 AEG-BWH OFFICERS
Chair: Steve Stokowski, AEG BWH, (508) 259-3536, Ettringite
Vice Chair: William Mikalik, Applied Environmental, Inc.,
703-282-0835, wmikalik
Secretary/Treasurer: Patrick Hastings, Seismic Surveys Inc., 240-578-1981, AEGBWHSecretary