The flow of time in the Connecticut valley : $b geological imprintsBain, George W. (George William)
Science
The flow of time in the Connecticut valley : $b geological imprints
Bain, George W. (George William)
Geology -- Connecticut River Valley
The road winds through pine-clad kame terraces, left on the margin of
the ice which filled the Lake Hadley basin; and where it emerges from
the woods (24.4), the line of hills making the Holyoke Range may be seen
stretching westward in a series of sharp points. These are the
projecting edges of the Holyoke lava flow which resisted erosion after
all the softer sediment and volcanic debris flanking it were removed.
The road to Mount Lincoln turns right at Pansy Park (24.9), and north of
this point the Amherst road follows a kame terrace between the Pelham
Hills on the right, and the former ice-filled bed of glacial Lake Hadley
on the left. Ultimately (27.1) the highway leaves the terrace and drops
to a delta which was deposited in Lake Hadley. The view northward shows
Mount Toby and Mount Sugarloaf outlined sharply, and to the east near
the Orient, the sharp V-shaped notch of the north fork of Fort River
cuts one of the kame terraces. The delta deposit (27.5 to 27.7) shows
excellent fore-set beds in the gravel pit (27.7), and its entire surface
is dotted with ponds which occupy irregular kettle holes (see pp. 7-8).
The highway continues down the delta slope and crosses the Fort River
(28.4). This river established a meandering course upon the bed of Lake
Hadley, but its floodplain is now excavated below the level of the lake
deposits, which form a terrace above the stream. The road passes through
Amherst (30.2) and returns to Northampton (37.4) by the outbound route.
_South Hadley, Amherst, Northampton_
The route 116 north from the road junction at South Hadley Falls (33.2)
also has its points of interest. After it passes over the deeply
dissected deposits in Lake Springfield, it rises above the old lake
level at the Mount Holyoke campus (35.1) and continues at this higher
elevation beyond the Hockanum-Amherst fork (35.9) in the center of South
Hadley. Along the right fork (State Highway 116), which leads to
Amherst, horizontal Longmeadow sandstone outcrops west of the road
(37.1) where the slope to the valley of Bachelor Brook begins. The flat
lake plain extends from Moody’s Corner (37.4) to the base of the Holyoke
Range. A gravel road turns right from the highway (38.2) and crosses the
brook one mile east, and from this locality were excavated many of the
excellent dinosaur footprints in the Amherst College collection.
Public-domain text, read in full here on John Shaqi.
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