We took a walk in Pelham Bay Park in the Bronx, New York on February 16, 2022. I replaced the skies in most of these.
I love the folded and layered metamorphic Fordham Gneiss, which is part of the Hartland Formation that forms the bedrock beneath the Bronx east of Cameron’s Line. The rock consists of granitic and garnetiferous amphibolite gneiss with numerous light-colored quartz veins and migmatite dikes. Migmatite is a type of igneous rock that forms when metamorphic processes begin to melt the rock under high temperature. Felsic minerals melt and are injected into joints, faults, and other zones of weakness in the rock. As it gradually cools, bands of feldspar and quartz crystals form along the edges of the intrusion. The center of the migmatite veins typically consist of larger crystals of feldspar and quartz. In some cases, the dikes cut across older dikes and quartz-filled veins; many are folded, or display offset by faulting. Overlying the bedrock is a blanket of glacial till. The beach is littered with large erratics derived from bedrock sources nearby. (Source: NYC Regional Geology (geologycafe.com))
After walking to the end of Hunter Island we drove to City Island for a meal at the Lobster House.