Geology Seminar Series

Wed., Nov. 27, 2019 4:30 p.m. - Wed., Nov. 27, 2019 5:00 p.m.

Location: College West Room 237.3

Topic: Using remote sensing to recognize alignments of monogenetic volcanoes in Massif d’Amber North Madagascar

Speaker: Mr. Hossein Narimani, master student in the Department of Geology, University of Regina

Abstract:

Monogenetic volcanoes are the most common volcanoes on Earth and reported in various geological settings (Wood, 1980) including those on Madagascar Island. The term monogenetic eruption has a wide range of meanings, but early concepts apply to “small-volume eruptions developed without subsequent eruptions by a single episode of volcanic activity” (Rittmann, 1963; Connor and Conway, 2000). They have been utilized in finding the relative age and erosion of volcanic eruptions, reconstruction in the monogenetic system of magma-fed dikes and the relationship between tectonic or structural settings. This study proposes to utilize remote sensing techniques to determine the linear arrangement of monogenetic volcanoes in Madagascar to examine the possible relation to the East African plate extension. Various methods will be used to determine alignments in the monogenetic volcano field of Amber Mountain of Madagascar including, spatial transform, azimuth and strip statistical methods combined with morphological parameters like ellipticity, fissure ridges and elongated cones.