Meeting, AEG-BWH, TOPIC: Evolution of Aggregate Supply to Baltimore, Maryland

Meeting of the BWH Section of the Association of Environmental & Engineering Geologists
_www.aegweb.org_ (http://www.aegweb.org)

Date: WEDNESDAY, May 21, 2014
TIME: 6:00 p.m. to 8:45 p.m.
RESERVATIONS:
To reserve a seat, please email Kris McCandless up until Noon on Tuesday, May 20, 2014 at
_aegbwhsecretary@comcast.net_ (mailto:aegbwhsecretary@comcast.net)

TOPIC: Evolution of Aggregate Supply to Baltimore, Maryland PRESENTER: Steve Stokowski, Stone Products Consultants, Vice Chair AEG-BWH

ABSTRACT:
Aggregate for the Baltimore metropolitan area historically came from quarries in Piedmont granite, gneiss, serpentinite, and dolomitic marble, from pits below the Fall Line in S&G to the west and east of the city, and from recycled blast furnace slag at Sparrows Point. There was early use of oyster shell as road base. In the late 1800’s, stone crushing for aggregate from waste rock began at a few dimension stone quarries. Some transitioned to crushed-stone-only quarries while S&G production also increased for the
concrete market. For many decades, vertically-integrated Harry T. Campbell Sons’ dominated the market from their metadolomite quarry in Texas, MD and S&G operation at White Marsh. The same marble quarry continues to supply aggregate, but other current quarries and pits are relatively new.

Although Baltimore is a port city, almost all material was historically shipped by truck. A modern trend is for rail and barge shipments to stone yards to the south and rail to a stone yard to the northwest of the city.

Baltimore had some of the first government studies to manage preemptive land development of resources. In the 1970’s, Kuff and others of the MDGS mapped “Lands for Potential Mineral Resource Development”; in 2002 Robinson and Brown of the USGS analyzed the issue from a socio-cultural perspective.

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).

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.

Last Meeting until September – come and vote for your new slate of BWH officers!
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 ($10 if a member company wishes to sponsor the balance of a student’s meal).

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 Kris McCandless up until Noon on Tuesday, May 20, 2014 at
aegbwhsecretary@comcast.net

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

Sent By:
S. J. Stokowski, CPG
Stone Products Consultants
email: ettringite@aol.com
LinkedIn: http://www.linkedin.com/in/stevenstokowski/

Oh Shenandoah! 80,000 Years of Climate Change in Virginia’s Great Valley

Mendenhall Postdoctoral Research Seminar and 

Eastern Geology and Paleoclimate Science Center Seminar

Benjamin Hardt – USGS, Reston, VA

When: Tuesday, May 13, 2014 – 12 Noon

Where: National Center, Room 1C400 (Visitor Center)

Details:

Oh Shenandoah! 80,000 Years of Climate Change in Virginia’s Great Valley

Rapid climate change events such as the Younger Dryas, Dansgaard-Oeschger (D/O) events and Heinrich stadials are a prominent feature of climate during the last glacial period. Corresponding to large temperature changes in Greenland and the North Atlantic, these abrupt shifts have notable consequences for European temperatures, the Asian summer monsoon, and South American precipitation. Very little is yet known about the extent of variability associated with these events in the eastern United States.  A precisely dated record from two stalagmites collected from Grand Caverns in Grottoes, Virginia, provides strong evidence of the Younger Dryas and earlier D/O events impacting the eastern United States.  While these events may be associated with regional temperature change, the stalagmite record likely represents a more direct response to changes in the composition of annual recharge. Available drip water data indicate minimal seasonal variability in δ18O, suggesting mixing times of ~12 months or longer. Changes in the seasonal balance of precipitation between winter- and summer-dominated regimes could explain the observations, although additional study is needed. The strong expression of millennial events in δ18O from the Grand Caverns stalagmites demonstrated by wavelet analysis of the time series contrasts with results from West Virginia, which show minimal variability at millennial scales, and large changes associated with orbital forcing. The stronger expression of millennial events at Grand Caverns is likely due to its position on the east flank of the Appalachians, allowing a greater contribution of Atlantic moisture, particularly during winter months.

 

WebEX Info

Topic: Mendenhall/EGPSC Seminar-Ben Hardt
Date: Tuesday, May 13, 2014
Time: 11:30 am, Eastern Daylight Time (New York, GMT-04:00)
Meeting number: 714 367 066
Meeting password: EGPSC

Please click the link below to see more information, or to join the meeting.

Although no login account is required to use Webex to attend
a meeting, you will need to supply your name, email address,
and a meeting password (if provided) to join the meeting.

When it is time to attend the meeting, please visit this link:
https://usgs.webex.com/usgs/j.php?MTID=m4a5104d43aa48d20ce0e6893758a99e0

Teleconference: At start time of the conference, each location must call one of the dial-in numbers:
From the National Center in Reston, dial internally x4848
From all other USGS/DOI locations, dial 703-648-4848
From nonDOI locations, dial toll free 855-547-8255
The toll free number is provided as a courtesy for use by attendees that are working offsite. This number is blocked at most DOI locations, due to the fact that is it less expensive to dial over FTS. If you are unable to connect with the toll free number for any reason, please use 703-648-4848.

After the voice prompt, please enter the Conference Security Code 88002010 followed by the # key. You will hear a tone confirming that you have successfully joined the conference call. If you weren’t successful, you will hear another voice prompt with instructions.

If you are disconnected for any reason, please dial in again using the instructions listed above.

SME-DC Meeting, May 13, Evolution of Aggregate Supply to Boston, Massachusetts

February, 11, 2014 MEETING
SME, Washington DC Section
This meeting is at the National Mining Association, located on the 5th floor at 101 Constitution Ave. NW, Suite 500 East, Washington,D.C.

RESERVATIONS: Lee Bray, Secretary-Treasurer, at 703-648-4979 or
_lbray@usgs.gov_ (mailto:lbray@usgs.gov) Please send your RSVP and entrée choice before 5:00 pm, Friday, May 9.

AGENDA & SPEAKER’S TOPIC:
Presentation of the Herbert C. Hoover Award to Steven J. Stokowski

SPEAKER: Steve Stokowski
“Evolution of Aggregate Supply to Boston, Massachusetts”

Abstract:

The Boston metro area is a classic example of the relationship between aggregate use, availability, transportation methods, adaptive reuse, and government studies to manage preemptive land development vs. aggregate availability.

Glacial S & G and a few rock quarries supplied Boston for decades, but were in short supply until development of new transportation methods. Rail first supplied the needs of Boston, but the development of trucks changed the method of supply. As local sources began being depleted in the 1960’s, a distant source in Ossipee, NH began supplying S & G by rail; this is the current largest producer and has extensive reserves. In the early 1990’s, the New England Governor’s Conference contracted for regional assessments of the demand and supply of aggregate.

**********************************
Tuesday, May 13, 2014.
11:30 – Social 12:00 – Lunch 12:30 – Speaker

Meeting cost: $23.00 for Washington, DC Section members
$28.00 for non-members

Please send your RSVP and entrée choice before 5:00 pm, Friday, May 9.
Contact: Lee Bray, Secretary-Treasurer, at 703-648-4979 or lbray@usgs.gov

Steven J. Stokowski is this year’s recipient of the SME-DC section Herbert C. Hoover Award.

We are planning to have a short business meeting after the talk at the May 13 meeting. I anticipate it will take no more than 10 minutes. We would like your input and discussion on the following five items:

1. Nominations for 2014-2015 Officers and Councilors

2. Location for future meetings; someone to take the lead

3. Start conducting field trips; maybe one spring one in fall?

4. Hold one meeting at a local university

5. Educational outreach

In advance of the meeting, you may make nominations to the Nominating Committee for the following officer positions and you may also nominate yourself:

Chairman

1st Vice Chairman Programs

2nd Vice Chairman Special Events

3rd Vice Chairman, Membership

Secretary-Treasurer

Awards

Student Relations & Government, Education, Minerals (GEM)

Nominating Committee:

Lin Shi: lshi

Mike Kaas: minermike

Karl Tsuji: Karl.Tsuji

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

The meeting will be held in the conference room at the offices of the National Mining Association, located on the 5th floor at 101 Constitution Ave. NW, Suite 500 East, Washington,

D.C. 20001. This is near the US Capitol. Parking is in the same building but
run by Central Parking ($23).

Plan on an additional 15 minutes of travel from the old location to get to
this location by car.

You may also arrive by METRO subway. The closest stops are Union Station
(Red Line) and Archives (Yellow & Green Lines). It is about a 10-minute
walk from the METRO stop to the meeting.

We have catered food. It is fajitas, rice, beans and salad and cookies
plus coffee and water. (Fajita FanDango: Strips of Angus Beef and Chicken Breast spiced with
Cumin, Coriander, Cilantro and Lime with Caramelized Peppers and Onions, Sided
with Flour Tortillas, Salsa, Sour Cream and Guacamole, Rice and Beans,
Grilled Summer Squash and Zucchini in a Balsamic Glaze, Garden Salad w/ Ranch
and Balsamic Dressing, Cookies and Dessert Bars).

We will also have 10 minutes of business to attend to, including nominations for next years leadership. .
The business meeting items will be discussed after the speaker.

We look forward to seeing you. Please RSVP to me by Friday 5 pm.

Thanks,

Lee

GSW spring field trip: Mather Gorge (in memory of E-an Zen)

GSW Spring Field Trip

Geology of the Great Falls of the Potomac:

A field trip and picnic in memory of E-An Zen

Saturday, June 14, 2014

Led by Phil Justus, Rockville Science Center

In his 50-year career as a geologist with the USGS and University of Maryland, E-An Zen (1929-2014) had a wide-ranging impact and influenced many other geologic careers. E-An’s last major topic of research was the geomorphological evolution of the Potomac River gorge area at Great Falls. To honor his memory, Phil Justus, who participated in Zen-led field trips 30 years apart, will lead a geology walk from Great Falls Tavern to Mather Gorge. The walk will be followed by a potluck picnic in or near the tavern, where friends of E-An will be invited to share their memories. Note: participants are welcome to skip the hike and just join us for the picnic after the hike.

Meeting time and place: 9:00 AM, Great Falls Tavern, C&O Canal National Historic Park (Maryland side)—rain or shine. Park fee is $5 per vehicle.

What to wear and bring: suitable clothes and footwear for a 2.5-hour hike over rocky terrain, and portable chairs, food and drink for the picnic.

Following the hike: we will meet around noon to eat lunch and share our memories of E-An. We may be able to use an upstairs room in the tavern, but should be prepared for an outdoor picnic as well.

RSVP: please email Bill Burton (bburton@usgs.gov) beforehand if you plan to attend or have questions—please indicate whether you are interested in both the hike and picnic, or just one or the other. On the day of the trip: please call Phil on his cell phone, 301-717-5887301-717-5887,if you plan on attending just the picnic (location may change), or are running a little late for the hike,or are cancelling last minute.

PGS: Crustal-Scale Mass and Heat Transfer During the Run-up to a Super Eruption

The May, 2014, meeting of the Potomac Geophysical Society will be held May 15th 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).

Crustal-Scale Mass and Heat Transfer During the Run-up to a Super Eruption, James E. Quick1, Silvano Sinigoi2, Gabriella Demarchi2, Ian Richards1, Rita Economos3 (1Huffington Department of Earth Sciences, Southern Methodist University, Box 750395, Dallas, TX 75205. 2Dipartimento di Scienze della Terra, Università di Trieste, via Weiss 8, 34127 Trieste, Italy. 3Department of Earth and Space Sciences, University of California, Los Angeles, CA 90095-1567

Abstract: A virtually complete crustal section in the Sesia Valley of northwest Italy provides a unique opportunity to directly constrain crustal-scale transfer of mass and heat beneath a continental volcanic system. Capping the section, a bimodal volcanic complex containing a >15-km-diameter rhyolitic caldera is intruded by a 7- to 8-km-thick granitic pluton that is rooted in migmatitic paragneiss at mid-crustal levels. An 8-km-thick gabbroic body, “magmatically underplated” at >15 km depth, intrudes the paragneiss. Consistent with a cause-and-effect relationship between magmatic underplating in the deep crust and silicic plutonism and volcanism at high crustal levels, SHRIMP U/Pb zircon ages for volcanic, granitic and underplated gabbroic rocks cluster within a relatively narrow time window of ~290 to ~280 Ma. A Concordia age of 282 + 0.75 Ma on zircons from the caldera ignimbrite indicates that caldera formation occurred late in the evolution of this magmatic system. Field relations and geochemistry constrain the thermal history of the Sesia section and the processes of magmatic underplating, crustal anatexis and assimilation, and hybridization during its magmatic evolution. Magmatic underplating was accommodated by crustal extension, which is recorded by structures produced by the flow of gabbroic cumulates downward and away from a small magma chamber perched near the top of the intrusion. Heat from the underplated gabbro induced anatexis in country-rock paragneiss, producing granitic melts that migrated higher in the crust. Eu and Ba enrichments, εNd < -2.5, 87Sr/86Sr >0.7075, and δ18O > 8 indicate that the parental melt of the underplated gabbro had ingested ~24% to 40% assimilant consisting of paragneiss previously stripped of a granitic component. Peraluminous compositions of the granitic and volcanic rocks indicate that anatectic melting of metapelitic paragneiss was a contributing source, but 87Sr/86Sr ~ 0.710 and whole-rock δ18O ranging from 10 to 11.5 are intermediate between the compositions of the paragneiss (87Sr/86Sr ~ 0.715 and δ18O from 11 to >15) and the underplated gabbro, indicating that late-stage, residual melts produced by fractional crystallization of the underplated gabbro also contributed to the formation of granite and silicic volcanic rocks. A 1-D, finite-difference thermal model utilizing these constraints and incorporating advection and energy-constrained assimilation reproduces the thicknesses of lithologies observed in the field and indicates that: (1) focused delivery of mantle melt was efficient in driving anatexis in overlying crustal rocks, (2) migration of anatectic melts to the upper crust was efficient in removing heat from the underplated gabbro and restricting its thermal impact on the overlying crust, and (3) growth of lower- and upper-crustal plutons involved incremental assembly under conditions favoring creation of large volumes of crystal mush rather than large classic magma chambers.

Bio:  James E. Quick is the Associate Vice President for Research, Dean of Graduate Studies, and Professor of Earth Sciences at Southern Methodist University (SMU). Prior to his appointment at SMU, he was employed by the US Geological Survey for 27 years in various capacities including Team Chief Scientist for the Eastern Regional Geologic Mapping and Earth Surface Processes Teams, and Program Coordinator for the Volcano Hazards Program. He earned a BSc in Geology at UCLA, an MSc in Mineralogy and Petrology at the University of Minnesota, and a PhD in Geology at Caltech. For the last 25 years, Professor Quick’s research has focused on the Sesia Valley in northern Italy as a natural laboratory to understand the processes that influence the composition and the formation of igneous rocks. In this area, he and his Italian colleagues have demonstrated that tilting and uplift during the Alpine orogeny exposed the magmatic system beneath a Permian supervolcano to an unprecedented depth of >25 km. These results, which were recognized by the Geological Society of Italy with the Capellini Medal in 2010, led to the creation of a UNESCO Geopark in 2013, and resulted in Professor Quick’s induction in January as an honorary citizen of Borgosesia, the principal city of the Sesia Valley. In his presentation, Professor Quick will use boundary conditions developed in the Sesia Valley to address crustal-scale mass transfer and thermal evolution within an evolving magmatic system during the lead up to a super eruption.

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 540-888-3001540-888-3001 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 tofraser.robert@comcast.net.

Henry Krumb Lecturer, SME-DC, Tuesday, April 8, 2014

Hi Steve,

Great to meet you and the rest of the crew at SME-DC today. Thanks for the opportunity to present!

As discussed, my presentation is attached, please feel free to pass it on…

Best wishes,

Julian Anderson

President

Rider Levett Bucknall

The Role of the Project Management Professional at Project Start-up.pptx

PSW: Canid evolution & diversification

PALEONTOLOGICAL SOCIETY OF WASHINGTON

presents

The Evolution and Diversification of North American Canids

by

Graham Slater

Peter Buck Fellow

Department of Paleobiology

Smithsonian National Museum of Natural History

Wednesday, April 16, 2014

7:00 p.m., in the Cooper Room

National Museum of Natural History 

10th St. & Constitution Ave.

Non-Smithsonian visitors will be escorted

to the Cooper Room (E-207A) at 6:30 and 6:55 p.m.

Meet in the Constitution Avenue lobby at 5:00 p.m. to join us for dinner at “Elephant and Castle”

Latecomers can meet directly at the restaurant at the NW corner of 12th & Penn. Ave., NW