MISSION
To inform and advise the public about the geologic character of Arizona in order to increase understanding and encourage prudent development of the State's land, water, mineral, and energy resources.

PUBLIC INFORMATION
Inform the public by answering inquiries, preparing and selling maps and reports, maintaining a library, databases, and a website, giving talks, and leading fieldtrips.

GEOLOGIC MAPPING
Map and describe the origin and character of rock units and their weathering products.

HAZARDS AND LIMITATIONS
Investigate geologic hazards and limitations such as earthquakes, land subsidence, flooding, and rock solution that may affect the health and welfare of the public or impact land and resource management.

ENERGY AND MINERAL RESOURCES
Describe the origin, distribution, and character of metallic, non-metallic, and energy resources and identify areas that have potential for future discoveries.

OIL AND GAS CONSERVATION COMMISSION
Assist in carrying out the rules, orders, and policies established by the Commission, which regulates the drilling, for and production of oil, gas, helium, carbon dioxide, and geothermal resources.

STATE OF ARIZONA
JAN BREWER, GOVERNOR
ARIZONA GEOLOGICAL SURVEY
M. Lee Allison
Director and State Geologist

GEOLOGISTS
Jon E. Spencer, Senior Geologist

Michael Conway, Chief, Geologic Extension Service
Joseph P. Cook, Geologist II
Charles A. Ferguson, Research Geologist
Brad johnson, Project Geologist
Michael K. Mahan, Project Geologist
Phillip A. Pearthree, Chief, Environmental Geology
Steven L. Rauzi, Oil & Gas Administrator
Stephen M. Richard, Research Geologist
Todd C. Shipman, Project Mngr. Earth Fissures
Ann M. Youberg, Research Geologist

GEOINFORMATICS STAFF
Stephen M. Richard, Chief, Geoinformatics

Ryan Clark, GIS Specialist
Wolfgang Grunberg, IT Specialist
Helen Ireland, GIS Specialist
Dominic Owen, Developer
Dominique Villela, Web Developer

PHEONIX BRANCH OFFICE
Mimi Diaz, Chief, Phoenix Branch

Brian Gootee, Research Geologist
Jeri Young, Research Geologist

ADMINISTRATIVE SERVICES
lori Smith, Chief Finance & admin. officer

Jennifer Roper, Acting Business Manager

AZGS BOOKSTORE
a. Marie Madero, Bookstore Manager
Adrienna Madero, Bookstore Assistant






ARIZONA GEOLOGY is published three times annually by the Arizona Geological Survey (AZGS), an executive branch agency of the State of Arizona. Send comments to the AZGS at 416 W. Congress Sreet, Suite 100, Tucson, AZ 85701, call 520.770.3500
or email michael.conway@azgs.az.gov.

AZGS Phoenix Branch. Phoenix, AZ. By appointment only, please call 602.708.8253

WWW.AZGS.AZ.GOV
Arizona Geology is published by the Arizona Geological Survey. | © The Arizona Geological Survey, 2009. All Rights Reserved.
Editor: Michael Conway | Web Developer: Dominique Villela