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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1980-036-FA

Other ID: GUAT 80

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Principal Investigator(s): Charles Paull

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Electro-Magnetic: Magnetics, Location-Elevation: Navigation, Seismics: Air Gun / Water Gun, Seismics: Sub Bottom Profiler

Scientific Purpose/Goals: Conduct geophysical and sampling surveys of two volcanic calderas (Lago de Atitlan and Laguna de Ayarza) and a geophysical survey of a coastal bay underlain by major faults (Bahia de Amatique) in conjunction with Dartmouth College's ongoing volcanology research in the area.


Start Port/Location: Lake Atitlan, Guatemala

End Port/Location: Bay of Amatique, Guatemala

Start Date: 1980-01-19

End Date: 1980-03-06

Equipment Used: 3.5 kHz, Corer - slow, Air gun, Seismic refraction, Single channel hydrophone, Corer - gravity, Motorola Mini-Ranger III, Compass, Marine magnetometer

Information to be Derived: Samples and chemical analysis; Grain size analysis; Sea floor map; Bathymetric maps; Morphology;

Summary of Activity and Data Gathered: The USGS-Dartmouth cooperative group operated in Guatemala from early January to early March 1980. Geophysical and sampling surveys were carried out in two volcanic calderas and a geophysical survey was made in a coastal bay that is underlain by major faults. These operations successfully collected large amounts of seismic reflection and refraction profiles, magnetic intensity data, cores and heat flow information. Vessel TRANSNAVE replaced XAMAN EK on February 28, 1980. Cores: Atitlan=12, Ayarza=5; 3.5 kHz; Airgun; Magnetics; Sonobuoys.

Staff: William Dillon, David W. Folger, David Mason, Jerry McCarthy, Kenneth E. Parolski, Charles Paull

Affiliate Staff:
Nancy Bonar (Dartmouth College) - geologist; Christopher Newhall (Dartmouth) - geologist; John Ziagos (Southern Methodist U.) - geophysicist

Notes: No cruise report. Original Center People field contained: Charles Paull - Ch. Sci., geologist; William Dillon - geologist; Dave Folger - geologist; David Mason - mech. tech.; Gerald (Jerry) McCarthy - elect. tech., Ch. Tech.; Kenneth Parolski - elec. tech.
Project = Guatemala Caldera Lakes, Guatemala Caldera Lakes


Lago de Atitlan, Laguna de Ayarza, Bahia de Amatique, Guatemala, Belize, Bay of Honduras, Caribbean Sea, Central America, North Atlantic;

North: 16.2 South: 14.4 West: -91.3 East: -88.5


Transnave II

Xaman Ek



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Seismic refraction --- Sonobuoy
3.5 kHz --- Sub Bottom Profiler
Air gun --- Air Gun / Water Gun
Corer - slow --- Geology
Corer - gravity --- Geology
Marine magnetometer --- Magnetics
Motorola Mini-Ranger III --- Navigation
1980-036-FA-LN-001 ( Navigation trackline plot for field activity 80036)
Compass --- Navigation
Single channel hydrophone --- Air Gun / Water Gun
Bubble Gun
Sub Bottom Profiler
1980-036-FA-SE-002 ( microfilm of ATITLAN,AYARZA)
1980-036-FA-SE-003 ( analog tape of seismic data)
1980-036-FA-SE-001 ( Collection of paper record displays of seismic data( 40K*) for lines )

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