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Diabase dike intruding granite, NE Maine
Diabase (basaltic) dike intruding granite, NE Maine (180714-46)
Download ImagePorphyritic basalt
Porphyritic basalt –phenocrysts (larger crystals) are plagioclase feldspar (180714-44)
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Salts precipitated by evaporation of seawater
Rings of salt left behind by evaporation of seawater in a small pool. Pocket knife for scale. (180714-34)
Download ImageSalts precipitated by evaporation of seawater
Rings of salt left behind by evaporation of seawater in a small pool. (180714-33)
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Chilled margin in diabase dike, Maine (vertical)
Chilled margin in diabase dike intruding granite, Maine
Download ImageApophysis of basaltic intrusion in granite
Apophysis of basaltic intrusion in granite, coastal Maine. Chilled margin along dike’s edge. (180714-13)
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Granite glacial erratic, Maine
Glacial erratic: white-colored granite boulder surrounded by red granite background, coastal Maine (180713-29)
Download ImageTidal channels in estuary, Maine
Meandering tidal channels at low tide in estuary, Maine (180713-25) rivers, streams
Download ImageTidal channels in estuary, Maine
Meandering tidal channels at low tide in estuary, Maine (180713-22)
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Meandering estuary, Maine (vertical)
Meandering estuary at low tide, Maine (180713-14)
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Zeolite minerals in volcanic rock (vertical)
Zeolite minerals filling vugs in mafic volcanic rock (180713-4)
Download ImageVegetation exploiting fractures in granite (vertical)
Vegetation exploiting fractures in granite, Maine (180712-67)
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Granite coastline, Acadia NP, Maine
Coastline formed on Cadillac Granite, Acadia National Park, Maine. Note how the landscape is shaped by the sheeting fractures (unloading joints) in the granite. (180712-20)
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