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Deformation surveys of the Mt Erebus crater from 1980 to 1985

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Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Deformation surveys of the Mt Erebus crater from 1980 to 1985
Description:
Abstract:
A programme to monitor volcanic activity about the active summit crater of Mt Erebus was conducted by the NZ Geological Survey from December 1980 to December 1985. The surveys were made annually in conjunction with the International Mount Erebus Seismic Studies project.   The main components of the survey were as follows: (1) Horizontal deformation of the summit area was monitored by a triangulation network of five stations on the rim of Main Crater connected to two stations on more stable ground on the outer rim. (Five further stations were added in 1984 to include Side Crater and the Nausea Knob area.)  (2) Vertical deformation was monitored by four tilt levelling (i.e. dry tilt) patterns. (3) Horizontal and vertical deformation of Main Crater floor was monitored by an eight-marker alignment before it was destroyed by eruptions in 1984. (4) Short term horizontal deformation during declining eruptive activity in December1984 was monitored by repeat electronic distance measurements (EDM) of four lines on the outer slopes of Main Crater. (5) An alignment of seven stations near, and including, the original Erebus Hut, was surveyed annually to determine whether Camp Flow was a lava flow or a lava bomb-covered active glacier. (It proved to be the latter, moving downslope at 20-30 mm per year.) The most significant volcanic deformation was a relatively minor 50 mm expansion across the 500 m wide Main Crater, most of which occurred during increased seismicity in 1982 and during a period of eruptions in 1984. No significant tilt exceeding 20 microradians was recorded and only localised movements attributed to geothermal effects were detected on the crater floor. No short term changes were observed during the declining eruptions in late 1984. The expansion of Main Crater was interpreted as minor inflation across a rift system extending southwest from Main Crater through Side Crater associated with the increased gas and heat flux. There was no evidence for a substantial volume change in magma stored at shallow levels or a blockage in the the conduit beneath the lava lake.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Otway, P.M. Blick, G.H. Scott, B.J. Volcanic deformation monitoring on Mount Erebus: methods and results of geodetic surveys, 1980-1985. in: Volcanological and environmental studies of Mount Erebus, Antarctica.Kyle P.R. (ed) Washington: American Geophysical Union. 1994. pp.57-68 [Antarctic research series: 66] ISBN 0875908756 Blick, G. H. 1986. Site notes - Mt Erebus volcanic monitoring pattern, Immed. Rep. EDS 86/2, Earth Deform. Sect., Dep. Of Sci. And Ind. Res., Lower Hutt, New Zealand. Blick, G.H. 1987. Mt Erebus, Antarctica, volcanological observations and deformation survey. New Zealand Volcanology Record 15: 52 55. Blick, G.J. And Scott, B.J. 1986. Volcanic activity and deformation of the summit of Mt Erebus, Antarctica, the 1984 survey with appendix. In: Displacement analysis by P.M. Otway EDS Rep. 101, 39 pp. Earth Deformation Section, Department of Science and Industrial Research, Lower Hutt, New Zealand. Blick, G.H. And Williams, R.O. 1986. The December 1985 survey of the Mount Erebus volcanic deformation monitoring pattern, EDS Rep. 102, 39 pp. Earth Deformation Section, Department of Science and Industrial Research, Lower Hutt, New Zealand. Blick, G.H., Otway, P.M. And Scott, B.J. 1989. Deformation monitoring of Mt Erebus, Antarctica, 1980-1985. In Latter, J.H. (Ed.) IAVCEI Proceedings in Volcanology, Vol. 1. Volcanic Hazards. Pp 554-560, Springer-Verlag, New York, 1989. Otway, P.M. 1979. Erebus volcanic deformation surveys. NZ Volcanology Record 11:49-50. Otway, P.M. 1984. Erebus volcanic deformation surveys. NZ Volcanol. Rec. 12: 60-61. Otway, P.M. 1985. Erebus deformation surveys (1982). NZ Volcanol. Rec. 13: 82-83. Scott, B.J. And Currie, S.A. 1984. Mt Erebus survey report. EDS Rep. 84/7, Earth Deform. Sect., Dep. Of Sci. And Ind. Res., Lower Hutt, New Zealand. Scott, B.J. And Otway, P.M. 1985. Volcanic deformation studies - Mt Erebus. NZ Antarctic Record 6: 20-23. Scott, B.J. And Otway, P.M. 1987. Erebus, Antarctica, volcanoligcal observations and deformation survey. NZ Volcanol. Rec. 14: 62-69. Kyle, P.R. Otway, P. Volcanic activity of Mount Erebus, 1981-82. Antarctic journal of the United States 17(5): 31-32, 1982.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19801120
Ending_Date: 19810109
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19811124
Ending_Date: 19811213
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19821203
Ending_Date: 19830112
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19831123
Ending_Date: 19831206
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19841107
Ending_Date: 19841217
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19851128
Ending_Date: 19851223
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 167.1667
East_Bounding_Coordinate: 167.1667
North_Bounding_Coordinate: -77.5333
South_Bounding_Coordinate: -77.5333
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > CONTOURS
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TOPOGRAPHICAL RELIEF
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
Theme_Keyword: FIELD SURVEYS
Theme_Keyword: GROUND STATIONS
Theme_Keyword: Horizontal Deformation
Theme_Keyword: Tilt Levelling
Theme_Keyword: Vertical Deformation
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: CONTINENT > ANTARCTICA > MT EREBUS
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: BRAD SCOTT
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Wairakei Research Centre
Address: Private Bag 2000
City: Taupo
Postal_Code: 3352
Country: New Zealand
Contact_Voice_Telephone: +64 07 376 0151
Contact_Facsimile_Telephone: +64 07 374 8199
Contact_Electronic_Mail_Address: B.Scott@gns.cri.nz
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
A single publications contains all the information on the surveys and includes the 12 New Zealand references giving more specific information on the survey methods and results and the actual location of the survey stations: Otway, P.M. Blick, G.H. Scott, B.J. Volcanic deformation monitoring on Mount Erebus: methods and results of geodetic surveys, 1980-1985. In: Volcanological and environmental studies of Mount Erebus, Antarctica. Kyle P.R. (ed) Washington: American Geophysical Union. 1994. pp.57-68 [Antarctic research series: 66] ISBN 0875908756 The actual field observations were recorded in a series of field books, and the computations are on computer printouts and manual calculations, all held by IGNS Science, Wairakei, New Zealand. Please contact Brad Scott B.Scott@gns.cri.nz
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NZ/NZAI/ANZ > Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
Contact_Person: SHULAMIT GORDON
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Resource_Description: K044_1980_1985_NZ_1
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.antarcticanz.govt.nz/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20090204
Metadata_Review_Date: 20090325
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: CEISHA POIROT
Contact_Person_Primary:
Contact_Person: SHULAMIT GORDON
Contact_Position: DIF AUTHOR
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: c.poirot@antarcticanz.govt.nz
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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