AD

BPD

PD

Trachyte

Orientation

–

N23˚E - N45˚E

N30˚ - 60˚E

N90˚E

Width

30 - 35 m

50 - 100 m

75 - 100 m

45 - 75 m

Length

38 - 40 m in diameter

9 - 9.5 km

5 - 7 km

3 - 4 km

Mineralogy

Pl + Cpx + Amp + Afs + Bt + Opq + Ap + Ep + Chl + Ttn

Pl + Afs + Cpx + Bt+ Qtz + Opq + Ep + Chl

Pl + Afs + Cpx + Qtz + Opq + Ep + Ch

Pl + Sa + Bt + Opq

Ep + Chl