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Honduras Geology (updated
06/13/2000)
REQUESTS FOR DATA AND INFORMATION REQUESTS Sun, 11 Jun 2000 17:37:54 -0600 (CST) From: Arturo Trochez Oviedo <atrochez@cariari.ucr.ac.cr> To: rrogers@utig.ig.utexas.edu Yo soy estudiante de la maestria en hidrogeologia de la Universidad de Costa Rica, soy hondureno y actualmente estoy trabajando en mi tesis en la ciudad de Siguatepeque, por lo que necesito la siguiente informacion: * Espesor de las distintas unidades geologicas del cuadrangulo Siguaqtepeque * Si es posible incluir un perfil geologico del cuadrangulo siguatepeque, mucho se lo agradecere. Muy atentamente, ARTURO TROCHEZ, PD. El autor del mapa es Donald Curran REPLY
Please note that the Figure 4 (Curran 1980) differs from the stratigraphic column accompanying the Siguatepeque map (Curran 1981). Specifically, the positions of the Potrerillos Ignimbrite and Cerro Verde Formation are reversed as are the positions of the Guique Tuff and the Ocote Arrancado Ignimbrite. P. Emmet (personal communication, 2000) notes that the difference is due to a questionable K-Ar date and that the stratigraphic column from the Siguatepeque map is correct. The Quebradita ignimbrite (from Figure 4) does not appear on Siguatepeque map. Based on descriptions in Curran, 1980, it appears that it may have been combined with the Guique Tuff on the geologic map (Curran, 1981). Also, the Agua Dulce volcanics of Figure 4 (Curran 1980) becomes the Matagalpa Formation on the IGN Sheet (Curran 1981). The name Matagalpa should be restricted to Nicaragua and the name Agua Dulce volcanics (Curran 1980) is preferred. I do not have the cross section. I will attempt to find and post
scanned copies in future. This may also help resolve stratigraphic
inconsistancies noted above.
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