Question

EXERCISE 5.9 Explaining Igneous Features Found in the Field (continued) Name: Course: Section Date: (b) The Palisades Sill on the west bank of the Hudson River in New Jersey is a shallow basaltic intrusive. The sill varies testurall, as showni, Einon the oitesturalvariations were pro duced by crystallization of the sill. Schematic cross section of the Palisades Sill Mafic inclusions (xenoliths) in a granitic pluton Wall rock Coarse basalt Fine basalt Zone of olivine (c) In the figure above (right), a thin brown zone of weathering highlights iron-rich zones that separate the host granite from the mafic xenoliths. Based on the magmatic processes described above, suggest an origin for these zones

Answer 1

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