Glacial Till outside of Burlington, Vermont
Rock Walls at the Robert Frost homestead in Derry, New Hampshire. Photos by Kristen Rahilly.
Lonely rock wall in Nashua, New Hampshire. Photo by Kristen Rahilly.
Laurentide Ice Sheet. Modified from Cohen, 2014.
The six garnet types and their color/gem varieties. Modified from geology.com
Garnet nail files and two garnet rings. Photo Credit Jessica Johnson
Examples of garnet occurences in different geologic environemnts. a) garnet-rich sand in Nome, Alaska. Modified from Mervine, 2012, AGU blogsphere. b) small garnets in a granite. Modified from gq.mines.gouv.qc.ca,2018. c) garnet-rich sand along a beach in Sri Lanka. Modified from EGU, 2016. d) Large garnets in a schist from Ireland's Mine, Broken Hill. Modified from ga.gov.au. e) Garnet-rich sands in Bi Sur's Pfeiffer Beach, LA times, 2011.
a) Great Carbuncle short story image. Modified from Shang, 2020. b) Button-on-bow brooch dated to the 7th-8th century Scandinavia. Modified from Britishmuseum.org. c) Steven Universe character "Garnet". Modified from Steven Universe Wiki. d) Anglo-Saxon sword hilt fitting, 8th century. Modified from Wikimedia.
The six garnet endmembers. All images are modified from Mindat.org. Almandine (Harold Moritz), Grossular (Peter Cristofono), Uvarovite (Elmar Lackner), Spessartine (Chinellato Matteo), Pyrop (John Betts), and Andradite (Joseph Freilich).
Garnets from the Barton Mine, Gore, New York,. Modified from Kelly, 2016. Right: Original Barton garnet sandpaper. Modified from Adirondak Museum.
The pH scale. Modified from epa.gov
Acid rain pathways. Modified from epa.gov
Figure a is an image of pristine marble from Thassos Island in Greece. Image b is a close up photo of the same marble. Modified from https://julian-hoffman.com/2014/10/21/the-marble-shore/
Marble gravestones etched away by the effects of acid rain. Photo credit: Kristen Rahilly
Marble Statue showing the effects of acid rain in Nashua, New Hampshire. Photo Credit: Kristen Rahilly
Drainages in the Sandia Moutnain Foothills near the Michael Emery Trail Head, Albuquerque, NM. Photo credit: Jessica Johnson.
All of the Earth’s river basins. Image modified from Robert Szucs, Grasshopper Geography.
This mountain stream is a part of the Connecticut River watershed. Photo Credit: Kristen Rahilly
The major river basins(and associated watersheds) that make up the Mississippi watershed. Modified from:
Figure shows surface water withdrawals for 2015. Modified from:
Figure a) Simplified image of a watershed and its components. Modified from.
Zoomed in view of xenolith and host rock. Photos by Kristen Rahilly
Left: Our xenolith (outlined in red square) innocently sitting in the midle of slab of rock in a stone circle memorial at Sunset Heights Elementary School in Nashua, NH. Right: Ouija board left over by previous visitors to the stone circle. Photos by Kristen Rahilly.
Both images show two types of xenoliths that formed deep within the mantle. In this case, the xenoliths are intrusive rocks and the host rock is extrusive;basalt. These were collected at Cerro de Guadulpe volcanic neck in New Mexico. Photo Credit: Jessica Johnson
Intrusive vs. extrusive rocks. intrusive igneous rocks cool slowly underground (inset lower pic, lower right is a granite). Extrusive igneous rocks cool quickly and are erupted onto the surface by volcanoes (inset pic, top right, is a rhyolite lava).
Left: Xenolith in a granodiorite slab. Right: Zoomed in view of xenolith and host rock. Photos by Kristen Rahilly
