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Surface Materials

SWI2-Map ESW GlacialMat

Map of surface materials reproduced from Appendix 1 on page 159 of “Exploring Stone Walls.”

 

Samples of stones from different map units shown below.

Stone-ShieldBouldersOntario

Map unit “Sand & Gravel” (ORANGE) consists of stones rounded by subglacial milling and meltwater transport. Hope Ontario.

Geog-MontaukPoint

Map unit “Moraines” (BLACK) consists of a great variety of material, generally a containing a mixture of stone shapes and sizes. Montauk Point, Long Island.

Geog-LakeChamplMud

Map unit “Fines” (PINK) consist of clay-, silt- and sand-rich lake and marine sediments without surface stones. They are present at great depth.

SWI2-Ph BethelRock

Map unit “Shallow Bedrock” (BLUE) is usually ledge overlain by rubble or hardpan. Bethel, ME.

 

Link back to stone wall provinces.