EDMED Details

General

Dataset Name: Crustal seismic reflection and gravimetric survey of Cape-North Island, New Zealand (1990)
Data Holding Centre: OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics
Time Period: December 1990
Start Date: 1990-01-01
End Date: 1990-12-31
Project

Geocoverage: 446 km on one segmented line of seismic reflection survey of Cape-North Island (New Zealand) area
Geographic Box (south,north,west,east): -42, 170, 180, -30
Sea Area: South Pacific Ocean

Parameters: Gravity; Seismic reflection
Instruments: multi-channel seismic reflection systems; seismic refraction systems; gravimeters; satellite positioning systems

Summary: D.S.I.R. Crustal Line - In December 1990 a Crustal Seismic Reflection Profile has been conducted in cooperation with the Department of Scientific and Industrial Research in the area of East Cape, North Island, New Zealand. The objective of the research was to study the lower crustal-upper mantle structure across the convergent margin and extensional back-arc basin of northern New Zealand. During the survey a total amount of 440 km has been covered on 2 lines. The seismic data have been collected with the following sampling parameters: Coverage = 3000 % Sample Rate = 4 ms Shot Interval = 50 m Streamer Length = 3000 m Streamer Depth = 12 m Group Interval = 25 m Number of Groups = 120 Record Length = 16 sec Air-Guns: - Total Volume = 45.16 l - Pressure = 140 bar - Depth = 6 m
Originator: OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics
References

Availability: by negotiation
Organization: OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics
Contact: unknown
Address: OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Geophysics; Sgonico (Trieste),; 34010; Italy; webmaster@ogs.trieste.it; http://www.ogs.trieste.it