{"id":1541,"date":"2023-12-20T14:54:52","date_gmt":"2023-12-20T19:54:52","guid":{"rendered":"https:\/\/www.trincoll.edu\/reporter\/?page_id=1541"},"modified":"2023-12-20T14:54:52","modified_gmt":"2023-12-20T19:54:52","slug":"etched-in-stone","status":"publish","type":"page","link":"https:\/\/www.trincoll.edu\/reporter\/winter-2024\/features\/etched-in-stone\/","title":{"rendered":"Etched in stone"},"content":{"rendered":"

By Eliott Grover<\/em><\/p>\n

As Trinity College continues to mark its Bicentennial, the Reporter<\/em> dug deep\u2014figuratively\u2014into the geological foundation of the campus on Summit Street. Read on to learn what we unearthed about the background of what was once known as Rocky Ridge.<\/p>\n

Back to the Beginning<\/h4>\n

According to 300 Million Years of Trinity History: A Field Trip into the Geology of Trinity\u2019s Campus<\/em>, a pamphlet by Christoph E. Geiss, professor of physics and environmental science, and Jonathan Gourley, principal lecturer and laboratory coordinator in Trinity\u2019s Environmental Science Program, the rocks underlying Trinity\u2019s campus were created some 200 million years ago during the Jurassic Period and the breakup of Pangea, the supercontinent that had formed roughly 100 million years earlier.<\/p>\n

Rifting, the pulling apart of tectonic plates, shaped a series of parallel valleys between Africa and the Americas. Water flowed into these valleys, creating a narrow inland sea between the conjoined continents. As the rifts widened, many of the valleys joined a larger system that became the Atlantic Ocean. But the Hartford Basin, the rift that opened in the Connecticut Valley, never fully developed. As geologic time passed, volcanic and glacial activity took turns shaping the Hartford landscape.<\/p>\n

Geiss says that as the Hartford Basin opened, it dumped red sediment into the valley below. Over time, thanks to the mineral-rich groundwater that seeped up, the sediment compacted, cemented, and turned into sedimentary bedrock. Meanwhile, the widening rift created long cracks in the Earth\u2019s surface. Through those cracks, magma rose to the surface and then formed big lava flows. Geiss says the lava cooled in a horizontal position and turned into the basalt rock upon which Trinity is built.<\/p>\n

\u201cIf you go down to Zion Street, to that little park down there, you can see the base of that basalt flow,\u201d Geiss continues. \u201cThe base was deposited as the basalt overran the red sediment. Those sediments had water in them, and the water evaporated on contact. You can actually see little gas bubbles in the basalt that came when the water evaporated out of the sediments, trying to squeeze their way into the basalt, and then froze in place.\u201d<\/p>\n

\"Jonathan
Jonathan Gourley, principal lecturer and laboratory coordinator in the Environmental Science Program, shows his fall 2023 \u201cIntroduction to Earth Science\u201d class a rock formation off Summit Street.
PHOTO: NICK CAITO<\/figcaption><\/figure>\n

Also as the Hartford Basin opened, it stretched asymmetrically, creating the ridge that Trinity is sited on, Gourley says. \u201cThe ridge is there because all those rocks slowly but surely tilted to the east, allowing them to extend upward toward the west.\u201d<\/p>\n

Like much of the Northeast, Trinity\u2019s campus bears the scars of glacial activity and erosion. \u201cThe rocks tell a story of the past,\u201d he continues. \u201cBoulders as big as school buses were getting dragged along the base of this continental glacier and scraping the bedrock.\u201d Glacial striations, such as the ones visible near the Fuller Arch, he says, point north to south and indicate which way the glaciers were moving.<\/p>\n

Building the Buildings<\/h4>\n

After the 1872 sale of the College\u2019s original campus to the City of Hartford as the site for the new State Capitol, Trinity\u2019s trustees purchased a large parcel about a mile to the southwest. The new campus, Rocky Ridge, was perched atop a cliff whose face had been chiseled by a defunct quarry that fed the city\u2019s industrialization. That cliff formed the western edge of the long ridge that ran north to south between the Farmington and Connecticut River Valleys.<\/p>\n

\u201cThe majesty of Trinity and the landscape that you can see off to the east is 100 percent controlled by the bedrock geology. . . . To maximize that wonderful view, the architects of Trinity College built a series of buildings and quadrangles that looked out to the east,\u201d Gourley says. \u201cNot that the west wasn\u2019t attractive as well, but it\u2019s a cliff off to the west side. That makes for a difficult campus if you extend down a cliff side. But if you extend down this nicely, gently sloping east-tipping landscape, it really allows the architecture to build a gorgeous campus, which we have.\u201d<\/p>\n

Alden Gordon \u201969, Paul E. Raether Distinguished Professor of Fine Arts, notes that in the 1870s, Trinity trustees hired acclaimed British architect William Burges to design the Rocky Ridge campus. A leading figure in the Gothic Revival movement, Burges was based in London and never actually visited Hartford; he trained an American architect named Francis Kimball to serve as his lieutenant. \u201cKimball was the one who saw the importance of cooperating with the north-south axis that was given by the geological formation,\u201d says Gordon.<\/p>\n

Kimball also discerned that Burges\u2019s initial plan, which called for four ornate quadrangles, was too costly, Gordon says. Kimball suggested a single linear building known as a \u201cbar building\u201d that could run parallel to the ridge. Burges used this recommendation to design the Long Walk, the continuous structure that defines Trinity\u2019s campus and has influenced many others across the country.<\/p>\n

\u201cIt\u2019s an earlier and more authentic Gothic Revival than most other New England campuses,\u201d says Gordon. \u201cThe Gothic at Yale and Wellesley is all 20th century. Trinity being in the 1870s was in the first wave of American campus buildings that was looking to the European style.\u201d<\/p>\n

\"This
This aerial photo, dated circa 1940\u201347, shows, at bottom right, the rocky ridge bordering the west side of campus. PHOTO: COURTESY OF THE TRINITY COLLEGE ARCHIVES<\/figcaption><\/figure>\n

With the cliff forming Trinity\u2019s western boundary, Gordon explains, Burges and Kimball used rubble from the Long Walk excavation to level the ground for the Main Quad on the east. Overlooking a pastoral New England landscape that rolled gently toward the Connecticut River, the view from the quad became a focal point of future campus planning.<\/p>\n

For the 1923 Centennial, the trustees hired the architecture firm Trowbridge & Livingston to create the College\u2019s second master plan. Samuel Trowbridge was a Trinity graduate, Class of 1883, and his design led to many significant buildings, including Cook Hall, Hamlin Hall, and the Trinity College Chapel. A critical element of the Trowbridge plan was that it honored Burges and Kimball\u2019s respect for the site\u2019s topography.<\/p>\n

\u201cTrowbridge and Livingston were smart enough to understand that they could square off the corners of the Burges bar building and make a return, but they would never close the eastern view,\u201d says Gordon. \u201cThat\u2019s what makes Trinity distinctive. The Main Quad is, in fact, not a quad. It\u2019s an open U.\u201d<\/p>\n

Gordon says that the U-shape almost disappeared as part of Trinity\u2019s third master plan in 1996. \u201cThere was this fully developed plan to add to the library and have it come out to the statue of the Bishop,\u201d he says, adding that the proposed expansion would have closed off a quarter of the Main Quad\u2019s eastern view. Gordon was part of a coalition that lobbied successfully for the College to build the library addition in the opposite direction. \u201cThe first exercise in that master plan,\u201d he jokes, \u201cwas to stop a building from being built.\u201d<\/p>\n

Today, the Raether Library and Information Technology Center offers an ideal vantage point to visualize the area\u2019s geologic history. Gourley says he likes to visit the building\u2019s rooftop for a panoramic view of the landscape. \u201cYou can see the big picture,\u201d he says. \u201cYou see all the way across to the eastern side of the valley where the Connecticut highlands start and where the rifting ended because there\u2019s a big fault there.\u201d<\/p>\n

Voice from Yesteryear<\/h4>\n

Writing in 1923, Trinity President Remsen Ogilby acknowledged the disparate relationship between biological and geological events. \u201cThe College itself proudly records a single century, while the rocks below register in silence thousands and millions of years.\u201d Ogilby seemed to understand that a milestone anniversary was the perfect opportunity to recognize the history of the College and the land beneath it. Today, 100 years later, the Bicentennial offers a similar occasion to celebrate Trinity\u2019s past and its commitment to the future, an ever-evolving story etched in scholarship and stone.<\/p>\n

Time after time<\/h3>\n

The geologic timescale might be considered a dizzying concept. One tip from the National Park Service is to imagine geologic time as a calendar year. If Earth formed on January 1, 4.6 billion years ago, dinosaurs did not become dominant until December 15. The dinosaurs were extinct by December 19, and the Pleistocene ice ages lasted for about three hours on the morning of December 31. Humans first appeared at 11:38 p.m. on New Year\u2019s Eve.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

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