| Callander Bay | |
|---|---|
| baie Callander | |
 Satellite image of Callander Bay | |
  Callander Bay Location in southern Ontario Show map of Southern Ontario Callander Bay Location in Ontario Show map of Ontario | |
| Location | Parry Sound District,Ontario |
| Coordinates | 46°12′46″N79°23′20″W / 46.21278°N 79.38889°W /46.21278; -79.38889[1] |
| Part of | Lake Nipissing |
| Basin countries | Canada |
| Surface elevation | 196 m (643 ft)[2] |
| Settlements | Callander |
Callander Bay (French:baie Callander) is abay at the extreme east ofLake Nipissing in the municipality ofCallander,Parry Sound District,Ontario, Canada.[1][3][4][5][6] It is approximately four kilometres (2.5 mi) in diameter. The community ofCallander is located on its east side.
Callander Bay is anerodedProterozoicvolcanic pipe[7] formed by the violent,supersonic eruption of a deep-originvolcano. These volcanoes originate at least three times as deep as most other volcanoes, and the resulting magma that is pushed toward the surface is high in magnesium andvolatile compounds such aswater andcarbon dioxide. As the body of magma rises toward the surface, the volatile compoundstransform togaseous phase aspressure is reduced with decreasing depth. This sudden expansion propels the magma upward at rapid speeds, resulting in a shallow supersonic eruption.
Callander Bay contains uncommon rocks such asnepheline syenite andcarbonatite and the minerals:aegirine,amphibole,analcime,apatite,barite,biotite,calcite,cancrinite,chalcopyrite,chlorite,diopside,dolomite,fluorite,garnet,hematite,kaersutite,magnetite,muscovite,nepheline,olivine,perthite,pyrite,pyroxene andpyrrhotite.[8]