Newsletter of the Department of Mineral Sciences From the Chair ...

Winter 2012 Volume 3, Number 3

Newsletter of the Department of Mineral Sciences

| Rocks ∙ Meteorites ∙ Gems ∙ Volcanoes ∙ Minerals |

In this Issue

NMNH Rock Festival

New Permanent Exhibit:

Dom Pedro Aquamarine

New Acquisitions for the

Gem and Mineral

Collections

The Fall turned out to be an eventful time in the

Department of Mineral Sciences. We started off

on a high note with the Rock On! Family Festival,

which brought together staff from Education, Min-

eral Sciences and Anthropology together with

outside groups to share the excitement of rocks

with the public. From flintknapping to curing

concrete to touching a meteorite, the public got to

experience nearly every aspect of what we do with

rocks in this Museum. Our sponsor was the Rocks

Build America Foundation of the National Stone,

Sand and Gravel Association. Adam Blanken-

bicker, who is shared between Mineral Sciences

and Education deserves a special tip of the cap for

organizing such a great event.

At the other end of the season, many of us just

returned from the annual meeting of the American

Geophysical Union in San Francisco. With 20,000

geoscientists from around the world, it’s one of the

biggest academic conferences of the year and

spans the range from space physics to properties of

the Earth’s core. It was my first year at AGU and I

have to say it is something to see.

I hope you each find 2013 to be safe, happy and

productive!

-Tim McCoy

From the Chair

Rock On!

On September 29, 2012 the

museum hosted Rock On!, a

free family festival about geol-

ogy and rocks in our lives.

Seventeen members from the

Department of Mineral Sci-

ences contributed to the festi-

val, either on the floor with the

public, or had helped out with

preparing materials. A few

members from Anthropology

also participated. Even though

only about 16,000 visitors vis-

ited on this Saturday, low for

that time of year, an estimated

12,000 participated in the festi-

val in some form or another,

making the event a large suc-

cess.

The festival was made possible

through a gift provided by the

National Stone, Sand and

Gravel Association.

Chair of Mineral Sciences

Tim McCoy

Newsletter Editor

Michael Wise

Dept. of Mineral Sciences

MRC 119

[email protected]

Volume 3, Number 3 Winter 2012

Education & Outreach—Rock On! Festival

Members of the Mineral Sciences

staff were present on the floor for the

duration of the festival, leading activi-

ties and demonstrations for the public.

Highlights included:

Sorena Sorensen demonstrated

how concrete crystallizes, measuring

the temperature over time and creat-

ing a molecular model of cement.

Ben Andrews created “pumice”

from soapy water and liquid nitrogen,

causing the surrounding area to get all

wet and soapy from the small explo-

sions.

Liz Cottrell was extremely dynamic as she shared her experience on a research ship in the

Ocean Hall, drawing in a large number of visitors.

In the Meteorite Gallery, Cari Corrigan, Emma Watson, Sheri Singerling, Andrew Beck,

Yulia Goreva, Linda Welzenbach and Tim McCoy traded shifts throughout the day sharing

their research and samples not typically on display to the public.

Leslie Hale brought out some curious

specimens from the Rock & Ore collection

which showed unique characteristics that

rocks can display.

Michael Wise and Cathe Brown

brought out attractive samples of pegma-

tites minerals and gemstones to share with

visitors.

Michael Wise, Sorena Sorensen, and

Rick Wunderman all stationed a table

with a petrographic microscope which visi-

tors could use to look at rodingite, a rock

collected at the Rockville Quarry by Tim

Rose, Adam Blankenbicker, and Margery Gordon. Samples of rodingite were given out to visi-

tors.

Visitors to the

NMNH Rock Festival were able

to experience a wide range of events. For

example, visitors could create their

own geology-inspired art by

marbleizing paper, which they were

able to take home or they could learn how stone tools are made from flint as demonstrated by

Eric Hollinger, Dennis Stanford

and Michael Frank from the

Department of Anthropology.

Outside visitors such as the National Stone, Sand, and Gravel Association (left), the Manassas

Quarry (right), the National Park Service, and the Federal Highway Administration, participated

in the NMNH Rock Festival. Photos by Vickie Legg.


Education & Outreach—Rock On! Festival (cont.)

Rick Wunderman sets up a model vol-

cano with plastic tubing and a can of shaving

cream, which drew a number of people in.

Geode cracking station in the Evans Gallery. Photos by Vickie Legg.

For each activity that visitors

participated in, they earned a stamp on a passport. When they received 5 or more stamps, they were able to crack open a geode to

take home, thanks to the help of Mobile Mining

Experience. Over 700 geodes were opened during the

festival, and at times the line to crack them open

extended the length of the

Evans Gallery!

Tim McCoy created comets with dry ice, soil and charcoal to show visitors what they

are composed of and how a comet’s tail develops. Photos by Margery Gordon.

New Faces in DMS


Christoph Popp received his PhD

degree in Geography from the Univer-

sity of Bern, Switzerland, working on

aerosol and trace gas remote sensing

from space and airborne instruments.

Christoph’s research at the Smith-

sonian focuses on the quantification

from space of global carbon dioxide

emissions from volcanoes . His work

includes screening available data sets

for signals of volcanic CO2, develop-

ing methodologies to convert satellite

measured column concentrations to

volcanic gas fluxes, and to improve

current CO2 retrieval algorithms from

space borne spectrometer measurements. In this two year interdisciplinary project, Christoph

closely works with Liz Cottrell, Ben Andrews (both DMS), and Kelly Chance from Harvard-

Smithsonian Astrophysical Observatory.

The Division of Volcanology and

Petrology welcomes two new post-

doctoral fellows—Fred Davis and

Christoph Popp. Fred Davis com-

pleted his Ph.D. at the University of

Minnesota in August of 2012 with a

concentration in experimental petrol-

ogy. His work there was focused on

understanding the processes that lead

to the formation of oceanic island

basalts. This was accomplished

chiefly by performing high-pressure

partial melting experiments with

peridotites and basalts in a piston

cylinder apparatus. Fred has joined

the Department of Mineral Sciences

as a Buck Fellow, working with Liz Cottrell, to analyze peridotite xenoliths for under-utilized

minor and trace elements such as Mn, Zn, Ga, and Ge to learn more about the roles of different

mantle lithologies in the petrogenesis of basalts.

On November 2012, Kathryn (Kat) Gardner-

Vandy started a 3-year post-doc with Tim

McCoy in the Department of Mineral Sciences.

Kat received her PhD in Planetary Sciences from

the University of Arizona last May. She plans to

study primitive achondrite meteorites to better

understand early melting and differentiation on

planetesimals and asteroid-sized bodies.

Field Studies


Ben Andrews returned to Guate-

mala’s Santa Maria Volcano with

Ryan Cahalan, a senior at the Uni-

versity of Texas at Austin. Ben and

Ryan spent 4 nights on the summit

of Santa Maria observing the Cali-

ente lava dome with an array of ra-

dio synchronized cameras. The ra-

dios, built by Mineral Science’s

Tim Gooding, worked extremely

well and allowed Ben to capture

more than 3000 synchronized sets of

images. Those images will be used

to construct a 3D digital model of

the lava dome surface through the

four days of observations. From

their (safe) vantage point ~2.7 km

away from the dome, Ben and Ryan witnessed a pyroclastic flow and numerous explosions,

including this spectacular display at 1:07 am on 15 November 2012.

Dr. Michael Velbel, Professor of Geological Sciences at Michi-

gan State University, is spending this academic year on sabbatical

leave in the Department of Mineral Sciences, National Museum of

Natural History, Smithsonian Institution. Michael studies regolith

geoscience, and the rates and mechanisms of mineral-water interac-

tions during rock and mineral weathering. His research investigates

the geological, mineralogical, geochemical, and geomorphic factors

which control mineral alterations at the Earth's surface and the mi-

gration of chemical elements through the landscape, emphasizing

small-watershed geochemistry. Related areas of research include

terrestrial weathering of Antarctic and non-Antarctic meteorites; rock-, mineral-, and chemical-

weathering on Mars and in Martian meteorites; recognition of pre-terrestrial aqueous alteration

on other meteorite parent bodies from mineralogical investigations of meteorites; and preserva-

tion of sample integrity for past and future sample-return missions.

Michael was a member of the Mineralogy-Petrology subteam of the NASA Stardust mission

Preliminary Examination Team (2006). In addition to MSU, Prof. Velbel has held visiting ap-

pointments at the University of Cincinnati, the Faculté des Sciences-St Jérôme of the Université

Paul Cézanne (Université d'Aix-Marseilles III), the Australian National University and the

(Australian) Cooperative Research Centre for Landscape Evolution and Mineral Exploration

(CRC-LEME). He held NASA/ASEE Summer Faculty Fellowships at the NASA Johnson

Space Center in 1987 and 1999.

As a Smithsonian Senior Fellow, Michael will work with Cari Corrigan and Ed Vicenzi on

Martian meteorites. The work will consists of microscopic (optical and SEM-EDS) investiga-

tion of aqueous mineral-alteration textures and assemblages associated with olivine in Martian

meteorites.

New Faces in DMS (cont.)

Eruption at the Santa Maria volcano, Guatemala. Photo

by Ben Andrews.

The newest addition to the

Smithsonian’s National Gem

Collection took center stage in

the Gem Gallery of the Janet

Annenberg Hooker Hall of Geol-

ogy, Gems & Minerals. The

Dom Pedro aquamarine, was

unveiled to the public on Decem-

ber 6, 2012. Thanks to the gen-

erous gift of donors Jane

Mitchell and Jeffery Bland, the

Dom Pedro will soon become

one of the iconic pieces of the

Musuem’s collection.

The Dom Pedro, the largest fac-

eted aquamarine, weighs 10,363

carats and measures 14 inches

tall and 4 inches wide at the

base. The history of the Dom

Pedro aquamarine, from its dis-

covery in Brazil to its eventual

home in NMNH, can be found

on the Mineral Sciences website

at http://mineralsciences.si.edu/

collections/dom-pedro/

history.htm


Exhibits — “The Dom Pedro is Unveiled”

The Dom Pedro aquamarine on permanent exhibit at the

Smithsonian. Photo courtesy of the Smithsonian Institution.

Donor Jeffery Bland (far left) and Jefferey Post (left) assist New NMNH Director Kirk John-

son (right) and donor Jane Mitchell (far right) in the unveiling of the Dom Pedro aquamarine.

Photo by Jim DiLoreto.


September 30th marked the closure of the highly successful Chilean Mine Rescue exhibit.

In its place, now stands a new and improved Geology theater. The updated theater offers new

rock specimens, graphics and text. The theater area was also designed to facilitate the presen-

tation of impromptu talks and lectures to the general public.

Exhibits

Awards & Grants


On December 11, 2012, the National Museum of Natural History held its annual Career

Service Awards and Peer Recognition Awards ceremony in Baird Auditorium. Several Min-

eral Sciences staff members were honored during the ceremony.

Russell Feather was honored for 30 years of service to the Smithsonian. Cathe Brown, Tim

Gooding and Ed Venzke all received their 20 years of service pins.

2012 Peer Recognition Awards were pre-

sented to Cari Corrigan and Linda Welzen-

bach (Rock Stars Award) for their work in

communicating the Smithsonian’s meteorite-

related activities to the general public

through online appearances, broadcasts and

interviews.

Leslie Hale was part of a 4-membered team

that received the Picking the Right Job

Seeker Award. This team was recognized for

their dedication and hard work in overseeing

the review of > 800 applications for 6 posi-

tions in the Collections Program Office.

The Funds Management Teacher of the Year

Award was presented to Veronica Reyna for

her exceptional work as the fund manager for

Mineral Sciences, Entomology, Invertebrate

Zoology and Vertebrate Zoology.

Michelle Reed (Dept of Anthropology) re-

ceived the GOVTRIP Guru Award for facili-

tating the many complex travel arrangements

for Mineral Sciences staff as well as for her

home department of Anthropology.

At the Mineralogical Society of the District

of Columbia’s annual Christmas party held

on December 3th, mineralogist Michael Wise

accepted a $1000.00 check donated by the

club to the Department of Mineral Sciences.

Linda Welzenbach (left) and Cari Corrigan

(right) receive their congratulatory Peer Recog-

nition certificate from new NMNH director

Kirk Johnson.


New Acquisitions

The Petrology Collection recently acquired a nice suite of manganese ores from retired

United States Geological Survey geologist, J. Stephen Huebner.

Smithsonian Gemstone Collectors Group Donations to NMNH

On October 18, 2012, the

Smithsonian Gemstone Collec-

tors Group (SGC) once again

made a significant contribution

to the National Gem and Min-

erals Collections. An impres-

sive specimen of beryl variety

emerald was one of two pieces

donated by SGC. The emerald

specimens came from the

Kagem Emerald mine, in the

Kafubu region of Zambia. The

emeralds are associated with

black tourmaline and together

occur in a biotite schist. These

Zambian emeralds display a

deep green color that in many

cases rival that of Columbian

emeralds, generally considered

the world’s standard.

Other recent acquisitions to the Gem Collection included a 19,747 carat smoky citrine

quartz (left), the largest in the collection, and a brilliant orange Brazilian opal (right) weighting

75.5 carats.

The second gift from the SGC was a magnifi-

cent 401.52 carats amethyst, the purple vari-

ety of quartz. This new addition comes from

Brazil and is the finest and largest faceted

amethyst in the National Gem Collection to

date.

Photo by Ken Larsen.

A specimen of beryl variety emerald from Zambia. 2012

Gift of the Smithsonian Gemstone Collectors Group. Photo

by Michael Wise.


New Acquisitions (cont.)

Newly acquired mineral specimens from the 2012 Denver Gem &

Mineral Show

Photos top to bottom: Blue topaz —St. Anne's Mine, Mwami, Karoi District, Zimbabwe; Dia-

mond crystal showing unusual twin (mackle) morphology —Ekati mine, Northwest Territo-

ries, Canada; Twinned rutile, also called by the varietal name sagenite in allusion to it having

the appearance of a net—Fianarantsoa Province, Madagascar. Photos by Michael Wise.


Meetings & Abstracts

Benjamin J. Andrews & Michael Manga.

Counterintuitive effects of substrate rough-

ness on PDCs (Invited).

Benjamin J. Andrews, Jeffrey Johnson, An-

drew P. Nies & Kirsten N. Chojnicki. Three

dimensional velocimetry of lava dome em-

placement using synchronized photogram-

metry, Santiaguito Dome, Guatemala.

Joseph B. Balta, Andrew W. Beck & Harry

Y. McSween. Trace elements record complex

histories in diogenites.

Maryjo N. Brounce, Katherine A. Kelley &

Elizabeth Cottrell. Fe3+/∑Fe variation in

Mariana arc and back-arc magmas and pri-

mary fO2 of the mantle wedge.

Fraukje M. Brouwer, Sorena S. Sorensen &

Pascal Philippot. Physical and chemical evo-

lution of subduction-related eclogites: Inter-

play of inheritance, alteration, deformation

and metamorphism.

Wim Degruyter, Benoit Cordonnier, Michael

Manga, Abdelmoula Haboub, Benjamin J.

Andrews, Robert L. Dennen, Alastair Mac-

Dowell & Dilworth Y. Parkinson. Evolution of

magma textures during deformation: Insights

from in situ X-ray tomography experiments

(Invited).

Robert L. Dennen, Benjamin J. Andrews,

Frank Trusdell, Robert A. Craddock & Eliza-

beth Bunin. Glass hydration as a tool for dat-

ing young pahoehoe flows.

Eloise Gaillou, Detlef Rost, Jeffrey E. Post &

James E. Butler. Towards an understanding of

deep boron: study of type IIb blue diamonds.

Brent Grocholski, Sang-Heon Shim & Vitali

Prakapenka. Stability and Compressibility of

Seifertite from 1 bar to 140 GPa.

George E. Harlow, Sorena S. Sorensen, Ken-

net E. Flores & Horst R. Marschall. Fluid-

mediated mass transfer from a paleosubduction

channel to its mantle wedge: Evidence from

jadeitite in the Guatemala Suture Zone.

Cardenas, M. Bayani, Lagmay, A. Mahar F.,

Andrews, Benjamin J., Rodolfo, Raymond

S., Cabria, Hillel B., & Lapus, Mark R. Ter-

restrial smokers: thermal springs due to

hydrothermal convection of groundwater con-

nected to surface water.

Carmichael, Sarah K., Carmichael, Mary

Jane, Johnson, Krissy W., Roble, Leigh Anne,

Strom, Amanda C., Santelli, Cara, & Brauer,

Suzanna L. Microbial Mn (ii) oxidation as an

indicator of anthropogenic impact in caves: a

case study in Carter salt peter cave, Carter

county, TN.

Heimann, Adriana, Bitner, Joshua, Wise, Mi-

chael A., Rodrigues Soares, Dwight, & Mous-

inho Ferreira, Ana Cláudia. The composition

of garnet in granitic pegmatites.

McSween, H.Y., Ammannito, E., Reddy, V.,

Prettyman, T.H., & Beck, A.W., Rheasilvia

basin on asteroid Vesta - a window on the

mantle?

Wise, Michael A., Application of cathodolu-

minescence to the investigation of granitic

pegmatites.

https://gsa.confex.com/gsa/2012AM/webprogram/Paper206008.html




Jeffrey Johnson, Benjamin J. Andrews,

Jacob Anderson, John J. Lyons & Jonathan

M. Lees. Volcano geodesy at Santiaguito

using ground-based cameras and particle im-

age velocimetry.

Marion Le Voyer, Erik H. Hauri, Katherine

A. Kelley & Elizabeth Cottrell. Unraveling

the effect of primary versus secondary proc-

esses on the volatile content of MORB

glasses: an example from the equatorial Mid-

Atlantic Ridge.

Oscar G. Lopez, Elizabeth Cottrell & Jessica

M. Warren. Upper mantle oxygen fugacity in

ridge and subduction zone settings recorded

by spinel peridotite.

Timothy J. McCoy, Larry R. Nittler, Karen

R. Stockstill-Cahill & David T. Blewett.

Mercury: Informing Remote Sensing through

Petrology in the Absence of Samples from the

Innermost Planet.

Steve McNutt, Edward Venzke & Earle R

Williams. Volcanic Lightning: New Global

Observations and Constraints on Source

Mechanisms.

Thomas H. Prettyman, David W. Mittlefehldt,

Naoyuki Yamashita, Harry Y. McSween,

William C. Feldman, David J. Lawrence,

Andrew W. Beck, Timothy J. McCoy, Mi-

chael J. Toplis, Hugau Mizzon, Carol A. Ray-

mond, Christopher T. Russell. Chemical

Mapping of Vesta and Ceres.

Cara M. Santelli, Gabriela A. Farfan, Alison

Post & Jeffrey E. Post. Impact of environ-

mental chemistry on mycogenic Mn oxide

minerals.

Adam R. Sarafian, Horst R. Marschall & Sheri

Singerling. The origin of Stannern trend

eucrites by melt-rock interaction.

Sorena S. Sorensen. Epidote-group min-

eral+quartz veins in metatuff: Petrography,

chemistry, timing, style and redox implications

of fluid-derived minerals in altered arc crust.

Donald Swanson, Richard S. Fiske & Carl R.

Thornber. Vents and Dikes in the Heart of the

Koa‘e Fault System at Kilauea.

Michael J. Toplis, Hugau Mizzon, Olivier

Forni, Marc Monnereau, Thomas H. Pretty-

man, Harry Y. McSween, Timothy J. McCoy,

David W. Mittlefehldt, Maria C. De Sanctis,

Carol A. Raymond & Christopher T. Russell.

Internal structure and mineralogy of differenti-

ated asteroids assuming chondritic bulk com-

position: The case of Vesta.

Laura Waters, Rebecca A. Lange & Benjamin

J. Andrews. Water-saturated phase-

equilibrium experiments on rhyolite and dacite

obsidians: the effect of variable melt water

concentration on the composition of

phenocrysts.

Shoshana Z. Weider, Larry R. Nittler; Richard

D. Starr, Larry G. Evans, Timothy J. McCoy

& Sean C. Solomon. Abundance of Iron on

Mercury"s Surface from MESSENGER X-Ray

Spectrometer Data.

Ed Venzke presented a poster at the United

States Geological Survey sponsored

“Volcanism in the American Southwest” meet-

ing held in Flagstaff, AZ (October 2012).

Ed’s poster featured data compiled by the

Smithsonian’s Global Volcanism Program.

The poster focused on 10 volcanoes from Ne-

vada, Utah, Colorado, Arizona, and New Mex-

ico, thought to have been active over the last

10,000 years. Ed’s poster can be viewed at

http://volcanoes.usgs.gov/vsc/file_mngr/file-

67/VASW_PresentationVolume.pdf.

Meetings & Abstracts (cont.)


Meetings & Abstracts (cont.)

Volume 3, Number 3

Denevi, B.W., Blewett, D.T., Buczkowski,

D.L., Capaccioni, F., Capria, M.T., de Sanc-

tis, M.C., Garry, W.B., Gaskell, R.W., Le

Corre, L., Li, J.Y., Marchi, S., McCoy, T.J.,

Nathues, A., O'Brien, D.P., Petro, N.E., Piet-

ers, C.M., Preusker, F., Raymond, C.A.,

Reddy, V., Russell, C.T., Schenk, P., Scully,

J.E.C., Sunshine, J.M., Tosi, F., Williams,

D.A., & Wyrick, D. (2012) Pitted Terrain on

Vesta and Implications for the Presence of

Volatiles. Science, 338(6104): 246-249.

Evans, L.G., Peplowski, P.N., Rhodes, E.A.,

Lawrence, D.J., McCoy, T.J., Nittler, L.R.,

Solomon, S.C., Sprague, A.L., Stockstill-

Cahill, K.R., Starr, R.D., Weider, S.Z.,

Boynton, W.V., Hamara, D.K. & Goldsten,

J.O. (2012) Major-element abundances on the

surface of Mercury: Results from the MES-

SENGER Gamma-Ray Spectrometer. Journal

of Geophysical Research-Planets, 117

doi:10.1029/2012JE004178

Gaillou, E., Post, J.E., Rose, T. & Butler,

J.E. (2012) Cathodoluminescence of Natural,

Plastically Deformed Pink Diamonds. Mi-

croscopy and Microanalysis, 18, (6): 1292-

1302.

Ivanova, M.A., Krot, A.N., Nagashima, K. &

MacPherson, G.J. (2012) Compound ultrare-

fractory CAI-bearing inclusions from CV3

carbonaceous chondrites. Meteoritics &

Planetary Science, doi:10.1111/maps.12031

McCord, T., Li, J., Combe, J. McSween, H.,

Jaumann, R., Reddy, V., Tosi, F., Williams,

D., Blewett, D., Turrini, D., Palomba, E.,

Pieters, C., De Sanctis, M., Ammannito, E.,

Capria, M., Le Corre, L., Longobardo, A.,

Nathues, A., Mittlefehldt, D., Schroder, S.,

Hiesinger, H., Beck, A.W., Capaccioni, F.,

Carsenty, U., Keller, H., Denevi, B., Sun-

shine, J., Raymond, C., & Russell, C. (2012)

Dark material on Vesta: Delivering carbona-

ceous volatile-rich materials to planetary sur-

faces. Nature, 491:83-86.

Peplowski, P.N., Lawrence, D.J., Rhodes,

E.A., Sprague, A.L., McCoy, T.J., Denevi,

B.W., Evans, L.G., Head, J.W., Nittler, L.R.,

Solomon, S.C., Stockstill-Cahill, K.R. &

Weider, S.Z. (2012) Variations in the abun-

dances of potassium and thorium on the sur-

face of Mercury: Results from the MESSEN-

GER Gamma-Ray Spectrometer. Journal of

Geophysical Research-Planets, 117

doi:10.1029/2012JE004141

Prettyman T., Mittlefehldt D., Lawrence D.,

Yamashita N., Beck A. W., Feldman W.,

McCoy T., McSween H., Toplis M., Titus T.,

Tricarico P., Reedy R., Hendricks J., Forni

O., Le Corre L., Li J., Mizzon H., Reddy V.,

Raymond C., and Russell C. (2012) Elemen-

tal mapping by Dawn reveals exogenic H in

Vesta’s howarditic regolith. Science, 338

(6104): 242-246.

Reddy, V., Corre, L.L., O'Brien, D.P.,

Nathues, A., Cloutis, E.A., Durda, D.D., Bot-

tke, W.F., Bhatt, M.U., Nesvorny, D.,

Buczkowski, D., Scully, J.E.C., Palmer, E.M.,

Sierks, H., Mann, P.J., Becker, K.J., Beck,

A.W., Mittlefehldt, D., Li, J-Y, Gaskell, R.,

Russell, C.T., Gaffey, M.J., McSween, H.Y.,

McCord, T.B., Combe, J-P & Blewett, D.

(2012) Delivery of Dark Material to Vesta via

Carbonaceous Chondritic Impacts. Icarus,

221(2): 544-559.

Reddy, V., Nathues, A., Le Corre, L., Sierks,

H., Li J., Gaskell, R., McCoy, T., Beck, A.

W., Schroder, S., Pieters, C., Becker, M.,

Buratti, B., Denevi, B., Blewett, D., Christen-

sen, U., Gaffey, M., Marques, P., Hicks, M.,

McFadden, L., McSween, H., Mittlefehldt,

D., O’Brian, D., Raymond, C., & Russell, C.

(2012) Dawn Views a Small Terrestrial

World: Color Variations, and Surface Hetero-

geneity of Vesta. Science, 336(6082):633-

760.

Wendler, J.E., Wendler, I., Rose, T & Huber,

B.T. (2012) Using Cathodoluminescence

Spectroscopy of Cretaceous Calcareous Mi-

crofossils to Distinguish Biogenic from Early

-Diagenetic Calcite. Microscopy and Micro-

analysis, 18, (6): 1313-1321.

Winter 2012

Selected Publications

http://dx.doi.org/10.1126/science.1225374

http://dx.doi.org/10.1029/2012JE004178

http://dx.doi.org/10.1029/2012JE004178

http://dx.doi.org/10.1111/maps.12031

http://dx.doi.org/10.1029/2012JE004141

http://dx.doi.org/10.1029/2012JE004141

http://dx.doi.org/10.1016/j.icarus.2012.08.011

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