Viejo El Palmar
1983
San Felipe
Gravity transports volcanic material that is deposited close to the volcano farther downslope. Mainly it is surface water that is the trigger that moves these materials, which consist of block and ash flows and ashfall. They move when the rain comes. These events are mudflows and floods, which may occur months after the peak in activity, when rains come. They are called consequent hazards, to emphasize this loose connection with activity. More people and more business is done in these downslope areas which are subject to consequent hazards.
Volcanic sedimentation
Cobos, C. R., et al., Estudio preliminar del problema de "El Palmar, Quezaltenango", INSIVUMEH (Guatemala) Informe Tecnico 3-88, 111pp., 1988.
Harris, Andrew J L; Vallance, James W; Kimberly, Paul; Rose, William I; Matias, Otoniel; Downstream aggradation owing to lava dome extrusion and rainfall runoff at Volcan Santiaguito, Guatemala Special Paper - Geological Society of America
412
(2006): 85-104.
Kuenzi, W. D., O. D. Horst, and R. V. McGehee, Effect of volcanic activity on fluvial-deltaic sedimentation in a modern arc-trench gap, south-western Guatamala, Geol. Soc. Am. Bull., 90, 827, 1979.
Lentz, J., Die Abtragungsvorgangange in den vulkanischen Lockermassen der Republik Guatemala, Mitteilungungen der Geographische Gesellschaft, No. 1, 96 pp., 1925.
