POSSIBLE LAVA CHANNELS AND TUBES FROM THE SIWANA CALDERA SEQUENCE, SIWANA, BARMER DISTRICT, RAJASTHAN

Lava propagating systems comprising channels and tubes from the Siwana caldera sequence of the Malani Igneous Suite are reported at Sain Ki Beri and Dhiran. Their location near the periphery of the ring dyke su ggests that these channels may have been fed by the volcanic vents or cones, that were part of the ring which collapsed later.