Distribution of differentiated tholeiitic basalts on the lower east rift zone of Kilauea Volcano, Hawaii: A possible guide to geothermal exploration

Abstract

Research Article| March 01, 1983 Distribution of differentiated tholeiitic basalts on the lower east rift zone of Kilauea Volcano, Hawaii: A possible guide to geothermal exploration Richard B. Moore Richard B. Moore 1U.S. Geological Survey, Hawaiian Volcano Observatory, Hawaii National Park, Hawaii 96718 Search for other works by this author on: GSW Google Scholar Author and Article Information Richard B. Moore 1U.S. Geological Survey, Hawaiian Volcano Observatory, Hawaii National Park, Hawaii 96718 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1983) 11 (3): 136–140. https://doi.org/10.1130/0091-7613(1983)11<136:DODTBO>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Richard B. Moore; Distribution of differentiated tholeiitic basalts on the lower east rift zone of Kilauea Volcano, Hawaii: A possible guide to geothermal exploration. Geology 1983;; 11 (3): 136–140. doi: https://doi.org/10.1130/0091-7613(1983)11<136:DODTBO>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Geologic mapping of the lower east rift zone of Kilauea Volcano, Hawaii, indicates that more than 100 eruptions have extruded an estimated 10 km3 of basalt during the past 2,000 yr. Six eruptions in the past 200 yr have extruded about 1 km3. The eruptive recurrence interval has ranged from 1 to 115 yr since the middle 18th century and has averaged 20 yr or less over the past 2,000 yr.One hundred new chemical analyses indicate that the erupted tholeiites commonly are differentiated beyond olivine control or are hybrid mixtures of differentiates with more mafic (olivine-controlled) summit magmas. The distribution of vents for differentiated lavas indicates that several large magma chambers underlie the lower east rift zone. Several workers have recognized that a chamber underlies the area near a producing well, HGP-A; petrologic and 14C data indicate that it has existed for at least 1,300 yr. Stratigraphy, petrology, and surface deformation patterns suggest that two other areas, Heiheiahulu and Kaliu, also overlie large magma chambers and appear to be favorable geothermal prospects. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.