Formation and transfer of stoped blocks into magma chambers: The high-temperature interplay between focused porous flow, cracking, channel flow, host-rock anisotropy, and regional deformation

Abstract

Magmatic stoping, i.e., the formation, transfer into, and movement through magma of older plutonic and metamorphic host-rock xenoliths, was widespread in the Mesozoic Sierra Nevada batholith (California, United States). However, the prevailing view that stoped blocks form by rapid thermal shattering.

Keywords

• central Sierra Nevada
• South Mountain batholith
• Tuolumne intrusive suite
• pluton emplacement process
• Jackass Lakes pluton
• Nova Scotia
• Sausfjellet pluton
• fabric patterns
• California
• silicic magmas