The Tuya-Kawdy region of northern British Columbia is well established as a place where glaciation and volcanism overlapped in space. However, no modern work has integrated observations from the region’s volcanic and glacial...
Structural and geomorphic analyses of the Fila Costeña thrust belt in southwest Costa Rica indicate active thrusting within the inner forearc. The Fila Costeña exposes three major thrust faults that imbricate the late Tertiary...
For more information on the published version, visit Archetype Publication's Website., Thibodeau, Alyson M., John T. Chesley, Joaquin Ruiz, David J. Killick, and Arthur Vokes. "An Alternative Approach to the Prehispanic...
On 27 November 2012 at 1715 local time, a focused swarm of earthquakes was interpreted as the start of a new ongoing eruption on the south flank (Tolbachinsky Dol) of Plosky Tolbachik volcano in east central Kamchatka, Russia...
Globally, about 250 Holocene volcanoes are either glacier-clad or have glaciers in close proximity. Interactions between volcanoes and glaciers are therefore common, and some of the most deadly (e.g., Nevado del Ruiz, 1985) and...
Hoodoo Mountain ice cap, Hoodoo Glacier, and Twin glacier are located about 250 km southeast of Juneau, Alaska, in the Coast Mountains (near 56.8°N, 131.3°W, northwestern British Columbia). Several outlet valley glaciers flow...
The discovery of a relatively large and complete ptilodictyid bryozoan colony enabled morphometric analysis of astogenetic change from the colony base to the periphery. This enabled us to test the hypothesis that the relative...
For more information on the published version, visit GeoScienceWorld's Website., Hausrath, Elisabeth M., Alexis K. Navarre-Sitchler, Carl I. Steefel, Susan L. Brantley. "Basalt Weathering Rates on Earth and the Duration of...
For more information on the published version, visit Wiley's Website., Wyse Jackson, Patrick N., and Marcus M. Key, Jr. "Borings in Trepostome Bryozoans from the Ordovician of Estonia: Two Ichnogenera Produced by a Single...
For more information on the published version, visit Virginia Museum of Natural History's Website., The Ordovician Courtown Limestone Formation (Aurelucian, Caradoc) of County Wexford, south east Ireland comprises a sequence of...
Epibionts are uniquely valuable in their ability to constrain paleoecological hypotheses about their own as well as their host's behavior and environment. Rarely preserved epizoic bryozoans are here reported on fossil crabs...
Bryozoan epibiosis on lobster hosts has rarely been reported. This study documents bryozoan fouling of the American lobster (Homarus americanus Milne Edwards, 1837) from the Connecticut portion of Long Island Sound, USA. A...
For more information on the published version, visit Virginia Museum of Natural History's Website., Hageman, Steven J., Marcus M. Key, Jr., and Judith E. Winston, eds. Bryozoan Studies 2007 : Proceedings of the 14th...
Bryozoan Studies 2022 contains nineteen papers presented at the 19th International Conference of the International Bryozoology Association held at Trinity College Dublin in August 2022. Bryozoans are complex and fascinating...
This published version is made available on Dickinson Scholar with the permission of the publisher. For more information on the published version, visit The Archeological Society of Virginia's Website., Key, Marcus M., Jr.,...
For more information on the published version, visit Science Direct's Website., Hedquist, Saul L., Alyson M. Thibodeau, John R. Welch, and David J. Killick. "Canyon Creek Revisited: New Investigations of a Late Prehispanic...
Weathering and erosion processes are crucial to Critical Zone (CZ) evolution, landscape formation and availability of natural resources. Although many of these processes take place in the deep CZ (∼10–100 m), direct information...
For more information on the published version, visit Wiley's Website., Key, Marcus M., Jr., and Carrie E. Schweitzer. Coevolution of Post-Palaeozoic Arthropod Basibiont Diversity and Encrusting Bryozoan Epibiont Diversity?...
We welcome this opportunity to comment on some of the points (above) made by Prof Nils Spjeldnaes who we feel has misunderstood the reason for our application in the first place. In our application we have simply asked the...
Reinthaler and others (2019), hereafter Reinthaler 2019, characterize ice extent on 59 volcanoes in Latin America from 1986 to 2015 using Landsat and Sentinel-2 imagery to quantify the impact of climate and eruptions on glacier...
Glaciovolcanic landforms provide global-scale records of paleoenvironmental conditions and yield insights into subglacial eruption processes. Models for the formation of glaciovolcanic ridges, or tindars, are relatively simple,...
Sak, Peter B., Alexis K. Navarre-Sitchler, Christine E. Miller, Christopher C. Daniel, Jerome Gaillardet, Heather L. Buss, Marina I. Lebedeva, and Susan L. Brantley. "Controls on Rind Thickness on Basaltic Andesite Clasts...
For more information on the published version, visit Science Direct's Website., The long-lived (about 20 yr) bryozoan Adeonellopsis sp. from Doubtful Sound, New Zealand, precipitates aragonite in isotopic equilibrium with...
Liu, Xuejian, Tieyuan Zhu, and Jorden Hayes. Critical Zone Structure by Elastic Full Waveform Inversion of Seismic Refractions in a Sandstone Catchment, Central Pennsylvania, USA. Journal of Geophysical Research: Solid Earth...
Observing the critical zone (CZ) below the top few meters of readily excavated soil is challenging yet crucial to understanding Earth surface processes. Near‐surface geophysical methods can overcome this challenge by imaging...
In contrast to water and air, ice is the most dynamic enveloping medium and unique environment for volcanic eruptions. While all three environments influence volcanic activity and eruption products, the cryospheric eruption...
Key, Marcus M., Jr., Tara E. Jones, and Carolyn H. Jett. Dating the Colonial-Era Davis Site (44LA46) in Lancaster County, Virginia. Quarterly Bulletin of the Archeological Society of Virginia 55, no. 1 (2000): 57-80., This...
Key, Marcus M., Jr. and Emily S. Gaskin. Dating the Prehistoric Davis Site (44LA46) in Lancaster County, Virginia. Quarterly Bulletin of the Archeological Society of Virginia 55, no. 3 (2000): 135-160., This published version...
Wyse Jackson, Patrick N., Caroline J. Buttler, and Marcus M. Key, Jr. Dianulites petropolitana Dybowski, 1877 and Diplotrypa petropolitana Nicholson, 1879 (Bryozoa): Proposed Conservation of the Specific Names. Bulletin of...
The Cracked Mountain edifice is a basaltic subglacial volcano (i.e. tuya) situated in southwest British Columbia, Canada. The edifice is dominated by subaqueously deposited, massive to poorly stratified, variably palagonitized...
For more information on the published version, visit GeoScienceWorld's Website., Thibodeau, Alyson M., and Bridget A. Bergquist. Do Mercury Isotopes Record the Signature of Massive Volcanism in Marine Sedimentary Records?...
For more information on the published version, visit GeoScienceWorld's Website., Ace, Ashley, Nadine McQuarrie, Peter B. Sak, Robert Grundy, and Barrett Lavergne. "Documenting the Geometry and Magnitude of Shortening at the...
Alyson Thibodeau is a professor of Earth Sciences at Dickinson College., Larina, Ekaterina, David J. Bottjer, Frank A. Corsetti, Alyson M. Thibodeau, William M. Berelson, A. Joshua West, and Joyce A. Yager. "Ecosystem Change...
For more information on the published version, visit ScienceDirect's Website., Ma, Lin, Francois Chabaux, Eric Pelt, Mathieu Granet, Peter B. Sak, Jerome Gaillardet, Marina Lebedeva, and Susan L. Brantley. "The Effect of...
Marcus Key is a professor of Earth Sciences at Dickinson College. , Rationale: Stable oxygen and carbon isotope ratios are one of the most accurate ways of determining environmental changes in the past, which are used to...
Subduction of seamounts and ridges along thinly sedimented convergent margins results in deformation of the overriding forearc. Exposures of newly recognized late Pleistocene, shallow water deposits (i.e., Marenco formation)...
Key, Marcus M., Jr. Energy, Global Warming, and Student Behavior. Dickinson Science Magazine 1, no. 1 (2014): 35., Key, Marcus M., Jr. Energy, Global Warming, and Student Behavior. Dickinson Science Magazine 1, no. 1...
Passage zones are stratigraphic surfaces found in littoral settings separating deposits diagnostic of subaqueous environments from overlying sequences of subaerial deposits. In glaciovolcanic settings, passage zone surfaces are...
Published as: Wyse Jackson, Patrick N., and Marcus M. Key, Jr. Epizoic Bryozoans on Cephalopods Through the Phanerozoic: A Review. Studi Trentini di Scienze Naturali 94 (2014): 283-91. and Cephalopods have a long geological...
For more information on the published version, visit Cambridge University Press's Website., Wyse Jackson, Patrick N., Marcus M. Key Jr., and Stephen P. Coakley. "Epizoozoan Trepostome Bryozoans on Nautiloids from the Late...
Studies of terrestrial glaciovolcanic deposits have elucidated the utility of these deposits as tools to constrain ice conditions at the time of their emplacement. Very few studies, however, have documented the emplacement of...
Forests are increasingly threatened by climate-change-fuelled cycles of drought, dieback and wildfires. However, for reasons that remain incompletely understood, some forest stands are more vulnerable than others, leaving a...
A Mediterranean slipper lobster, Scyllarides latus (Latreille, 1802), was found near Malta in the Mediterranean Sea. It was conspicuously fouled by bryozoans which is a rare occurrence for lobsters in general, including this...
For more information on the published version, visit Science Direct's Website., Sak, Peter B., Mariah Murphy, Lin Ma, Jerome Gaillardet, Elizabeth M. Herndon, Susan L. Brantley, and Christopher Daniel. "From Unweathered Core to...
This published version is made available on Dickinson Scholar with the permission of the publisher. For more information on the published version, visit The Archeological Society of Virginia's Website., The Davis Site (44LA46)...
Key, Marcus M., Jr. and Tara E. Jones. Geoarcheology of Terra Cotta Tobacco Pipes from the Colonial Period Davis Site (44LA46), Lancaster County, Virginia. Quarterly Bulletin of the Archeological Society of Virginia 55, no. 2...
Undirhlíðar quarry on the Reykjanes Peninsula in southwest Iceland exposes an almost complete cross-section of a pillow-dominated tindar. Detailed mapping and geochemical analyses of the quarry walls show that glaciovolcanic...
Understanding the subsurface structure and function in the near-surface groundwater system, including fluid flow, geomechanical, and weathering processes, requires accurate predictions of the spatial distribution of...
In this study, we use aerial photographs, satellite imagery and field observations to quantify changes in the area, terminus length, snowline elevation and surface elevation of eight glaciers in the Alexandra Fiord region,...
The study of volcano-ice interactions, or 'glaciovolcanism', is a field experiencing exponential growth. This comprehensive volume presents a discussion of the distinctive processes and characteristics of glaciovolcanic...
We created a global database of glacierized volcanoes, using a projection optimized for each volcano, to identify locations where land ice (glaciers and ice sheets) and volcanoes co-exist on Earth. Our spatial database melds...
For more information on the published version, visit Landesmuseum Linz's Website., Cocito, Silvia, Maja Novosel, Zoran Pasarić, and Marcus M. Key, Jr. "Growth of the Bryozoan Pentapora Fascialis (Cheilostomata, Ascophora)...
Thibodeau, Alyson M., Judith A. Habicht-Mauche, Deborah L. Huntley, John T. Chesley, and Joaquin Ruiz. "High Precision Isotopic Analyses of Lead Ores from New Mexico by MC-ICP-MS: Implications for Tracing the Production and...
For more information on the published version, visit Springer's Website., Historic Christ Church in Lancaster County, VA (1735), is one of America’s best-preserved examples of colonial Georgian architecture. Among its many...
The southeastern tip of the Península de Nicoya, Costa Rica, on the Caribbean plate margin lies inboard of the rough bathymetric terrain on the subducting Cocos plate and along the landward projection of the convergence vector...
U–Pb ages have been measured on secondary dolomite and silica cements in Cambrian sandstone at the base of an 840 m thick sub-horizontally bedded sedimentary sequence beneath the Bruce nuclear site in southern Ontario to...
Davis, D.W., C.N. Sutcliffe, A.M. Thibodeau, J. Spalding, D. Schneider, A. Cruden, J. Adams, A. Parmenter, M. Jensen, and Z. Zajacz. "Hydrochronology of a Proposed Deep Geological Repository for Low- and Intermediate-Level...
Accurate quantification of rates of glacier mass loss is critical for managing water resources and for assessing hazards at ice-clad volcanoes, especially in arid regions like southern Peru. In these regions, glacier and snow...
Ward, Ingrid, Marcus M. Key, Jr., Rosine Riera, Annie Carson, and Michael O'Leary. Insights into the Procurement and Distribution of Fossiliferous Chert Artefacts Across Southern Australia from the Archival Record. Australian...
Quantitative measurements of interactions between lava and ice/snow are critical for improving our knowledge of glaciovolcanic hazards and our ability to use glaciovolcanic deposits for paleoclimate reconstructions. However,...
For more information on the published version, visit Cambridge University Press's Website., Key, Marcus M., Jr., Patrick N. Wyse Jackson, and Stephen H. Felton. "Intracolony Variation in Colony Morphology in Reassembled Fossil...
The Tolbachik volcanic complex in central Kamchatka holds a special place in global volcanological studies. ... Tolbachik is especially well-known due largely to the massive 1975–1976 eruption that became known as the Great...
Yesavage, Tifffany, Gary E. Stinchcomb, Matthew S. Fantle, Peter B. Sak, Alexander Kasznel, Susan L. Brantley. "Investigation of a Diabase-Derived Regolith Profile from Pennsylvania: Mineralogy, Chemistry and Fe Isotope...
For millennia, qeros have been a primary component of ceremonially and politically important toasting rituals in the Andes and retain their cultural significance to this day. These wooden drinking vessels underwent a stylistic...
Thibodeau, Alyson M., David J. Killick, Saul L. Hedquist, John T. Chesley, and Joaquin Ruiz. Isotopic Evidence for the Provenance of Turquoise in the Southwestern United States. GSA Bulletin 127, no. 11-12 (2015): 1617-1631....
Reid, Catherine M., Patrick N. Wyse Jackson, and Marcus M. Key, Jr. Latitudinal Influences on Bryozoan Calcification Through the Paleozoic. Paleobiology (Article published online September 2, 2022)....
Veniaminof Volcano on the Alaska Peninsula of southwest Alaska is one of a small group of ice-clad volcanoes globally that erupts lava flows in the presence of glacier ice. Here, we describe the nature of lava-ice-snow...
For more information on the published version, visit Science Direct's Website., Thibodeau, Alyson M., John T. Chesley, and Joaquin Ruiz. "Lead Isotope Analysis as a New Method for Identifying Material Culture Belonging to the...
Cheyne, Carol A.L., Alyson M. Thibodeau, Gregory F. Slater, and Bridget A. Bergquist. Lead Isotopes as Particulate Contaminant Tracers and Chronostratigraphic Markers in Lake Sediments in Northeastern North America. Chemical...
Magma-carbonate interactions and the subsequent CO2 release can occur before and during an eruption, critically affecting magma storage and ascent processes. However, the mechanisms and timescales of those interactions are...
Mercury is gaining prominence as a proxy for large igneous province (LIP) volcanism in the sedimentary record. Despite temporal overlap between some mass extinctions and LIPs, the precise timing of magmatism relative to major...
For more information on the published version, visit Amazon's Website., Buss, H.L., S.L. Brantley, P.B. Sak, and A.F. White. Mineral Dissolution at the Granite-Saprolite Interface. In Water-Rock Interaction: Proceedings of...
Here we present the results from monitoring of the composition of rocks produced during the 2012–2013 fissure eruption at Tolbachik volcano (FTE). Major and trace element concentrations in 75 samples are reported. Products of...
Miller, Scott R., Peter B. Sak, Eric Kirby and Paul R. Bierman. Neogene Rejuvenation of Central Appalachian Topography: Evidence for Differential Rock Uplift From Stream Profiles and Erosion Rates. Earth and Planetary...
Published as: Smith, Abigail M., Jade Berman, Marcus M. Key, Jr., and David J. Winter. Not All Sponges Will Thrive in a High-CO2 Ocean: Review of the Mineralogy of Calcifying Sponges. Palaeogeography, Palaeoclimatology,...
For more information on the published version, visit Science Direct's Website., Molofsky, Lisa J., David Killick, Mihai N. Ducea, Monica Macovei, John T. Chesley, Joaquin Ruiz, Alyson M. Thibodeau, Gheorghe C. Popescu. "A Novel...
Observations made during January and April 2013 show that interactions between lava flows and snowpack during the 2012–13 Tolbachik fissure eruption in Kamchatka, Russia, were controlled by different styles of emplacement and...
For more information on the published version, visit Wiley's Website., Severe global climate change led to the deterioration of environmental conditions in the oceans during the Toarcian Stage of the Jurassic. Carbonate...
We present a broad overview of the 2012–13 flank fissure eruption of Plosky Tolbachik Volcano in the central Kamchatka Peninsula. The eruption lasted more than nine months and produced approximately 0.55 km3 DRE (volume...
For more information on the published version, visit Cambridge University Press's Website., Key, Marcus M., Jr., Gregory A. Schumacher, Loren E. Babcock, Robert C. Frey, William P. Heimbrock, Stephen H. Felton, Dan L. Cooper,...
For more information on the published version, visit Springer's Website., Key, Marcus M., Jr., Kamil Zágoršek, and William P. Patterson. "Paleoenvironmental Reconstruction of the Early to Middle Miocene Central Paratethys Using...
Basanite lavas near Craven Lake, British Columbia, host a spinel lherzolite xenolith containing cross-cutting veins with pargasitic amphibole (plus minor apatite). The occurrence of vein amphibole in spinel lherzolite is...
The Canadian Cordillera hosts numerous Pleistocene and Holocene volcanoes and volcanic deposits, including a number of volcanoes that have erupted within the last several hundred years. The nature and composition of volcanic...
Weathering in the critical zone causes volumetric strain and mass loss, thereby creating subsurface porosity that is vital to overlying ecosystems. We used geochemical and geophysical measurements to quantify the relative...
Smith, Abigail M., Marcus M. Key, Jr., Zoe E. Henderson, V. Christine Davis, and David J. Winter. "Pretreatment for Removal of Organic Material is not Necessary for X-Ray-Diffraction Determination of Mineralogy in Temperate...
For more information on the published version, visit Amazon's Website., Navarre, A.K., S.L. Brantley, and P.B. Sak. Processes Controlling Weathering Rind Advancement on Costa Rican Basalt Clasts. In Water-Rock Interaction:...
Understanding interactions between volcanic eruptions and the cryosphere (a.k.a. glaciovolcanism) is important for climate reconstructions as well as for hazard mitigation at ice-clad volcanoes. Here we present unique field...
Key, Marcus M., Jr., Robert J. Teagle, and Treleven Haysom. Provenance of the Stone Pavers in Christ Church, Lancaster Co., Virginia. Quarterly Bulletin of the Archeological Society of Virginia 65, no. 1 (2010): 1-15., This...
Volcanoes are increasingly recognized as agents and recorders of global climate variability, although deciphering the linkages between planetary climate and volcanism is still in its infancy. The growth and emergence of...
For more information on the published version, visit Science Direct's Website., Engel, Jacqueline M., Lin Ma, Peter B. Sak, Jerome Gaillardet, Minghua Ren, Mark A. Engle, Susan L. Brantley. "Quantifying Chemical Weathering...
Eppinger, B.J., J. L. Hayes, B.J. Carr, S. Moon, C.L. Cosans, W.S. Holbrook, C.J. Harman, and Z.T. Plante. Quantifying Depth-Dependent Seismic Anisotropy in the Critical Zone Enhanced by Weathering of a Piedmont Schist....
We present a kinematic model for the evolution of the central Appalachian fold-thrust belt (eastern United States) along a transect through the western flank of the Pennsylvania salient. New map and strain data are used to...
For more information on the published version, visit Science Direct's Website., To quantify <a href=https://www.sciencedirect.com/topics/earth-and-planetary-sciences/chemical-weathering title="Learn more about Chemical...
For more information on the published version, visit GeoScienceWorld's Website., Vannuchi, Paola, Peter B. Sak, Jason P. Morgan, Ken’ichi Ohkushi, Kohtaro Ujiie, and IODP Expedition 334 Shipboard Scientists. "Rapid Pulses of...
Key, Marcus M., Jr., Abigail M. Smith, Benn Hanns, and Pamela Kane-Sanderson. Rare Report of Bryozoan Fouling of Rock Lobsters (Jasus edwardsii: Decapoda: Palinuridae) from the North Island of New Zealand. New Zealand Journal...
Sak, Peter B., Donald M. Fisher, Thomas W. Gardner, Katherine Murphy, and Susan L. Brantley. Rates of Weathering Rind Formation on Costa Rican Basalt. Geochimica et Cosmochimica Acta 68, no. 7 (2004): 1453-1472....