Book contents
- Glacially-Triggered Faulting
- Glacially-Triggered Faulting
- Copyright page
- Contents
- Figures
- Tables
- Contributors
- Preface
- Part I Introduction
- Part II Methods and Techniques for Fault Identification and Dating
- 3 Earthquake-Induced Landforms in the Context of Ice-Sheet Loading and Unloading
- 4 The Challenge to Distinguish Soft-Sediment Deformation Structures (SSDS) Formed by Glaciotectonic, Periglacial and Seismic Processes in a Formerly Glaciated Area
- 5 Glacially Induced Fault Identification with LiDAR, Based on Examples from Finland
- 6 Fault Identification from Seismology
- 7 Imaging and Characterization of Glacially Induced Faults Using Applied Geophysics
- 8 Dating of Postglacial Faults in Fennoscandia
- 9 Proposed Drilling into Postglacial Faults
- Part III Glacially Triggered Faulting in the Fennoscandian Shield
- Part IV Glacially Triggered Faulting at the Edge and in the Periphery of the Fennoscandian Shield
- Part V Glacially Triggered Faulting Outside Europe
- Part VI Modelling of Glacially Induced Faults and Stress
- Part VII Outlook
- Index
- References
9 - Proposed Drilling into Postglacial Faults
The Pärvie Fault System
from Part II - Methods and Techniques for Fault Identification and Dating
Published online by Cambridge University Press: 02 December 2021
- Glacially-Triggered Faulting
- Glacially-Triggered Faulting
- Copyright page
- Contents
- Figures
- Tables
- Contributors
- Preface
- Part I Introduction
- Part II Methods and Techniques for Fault Identification and Dating
- 3 Earthquake-Induced Landforms in the Context of Ice-Sheet Loading and Unloading
- 4 The Challenge to Distinguish Soft-Sediment Deformation Structures (SSDS) Formed by Glaciotectonic, Periglacial and Seismic Processes in a Formerly Glaciated Area
- 5 Glacially Induced Fault Identification with LiDAR, Based on Examples from Finland
- 6 Fault Identification from Seismology
- 7 Imaging and Characterization of Glacially Induced Faults Using Applied Geophysics
- 8 Dating of Postglacial Faults in Fennoscandia
- 9 Proposed Drilling into Postglacial Faults
- Part III Glacially Triggered Faulting in the Fennoscandian Shield
- Part IV Glacially Triggered Faulting at the Edge and in the Periphery of the Fennoscandian Shield
- Part V Glacially Triggered Faulting Outside Europe
- Part VI Modelling of Glacially Induced Faults and Stress
- Part VII Outlook
- Index
- References
Summary
Postglacial faults in northern Fennoscandia have been investigated through geophysical methods, trenching, and mapping of brittle deformation structures. Very little is known about postglacial faults through direct measurements. A few short, up to 500 m deep, boreholes exist. Plans for a scientific drilling program were initiated in 2010. The drilling target has been identified: The Pärvie Fault system is the longest known postglacial fault in the world and has been proposed to have hosted an M8 earthquake near the end or just after the last glaciation. Further, this fault system is still microseismically active. The drill sites are north of the Arctic Circle, in a sparsely populated area. Existing site survey data, established logistics, and societal relevance through the fault’s proximity to mining and energy operations make this fault system an appropriate target. The International Continental Scientific Drilling Program approved a full drilling proposal in October 2019. This chapter presents an abbreviated version of the approved proposal.
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- Glacially-Triggered Faulting , pp. 151 - 174Publisher: Cambridge University PressPrint publication year: 2021
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