Characteristics of the lithology, fault-related rocks and fault zone structures in TCDP hole-A

Sheng Rong Song, Li Wei Kuo, En-Chao Yeh, Chien Ying Wang, Jih Hao Hung, Kuo Fong Ma

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The main objective of the Taiwan Chelungpu-fault Drilling Project (TCDP) was to conduct an in-depth probe into a fault zone of recent major activity so as to gain a better understanding of and more insight into the physical, mechanical and chemical properties involved. By the end of 2004, with the completion of the drilling of Hole-A, cuttings from 0 to 431.34 m and cores from a 431.34- to 2003.26-m depth had been obtained. Stratigraphically, the Pliocene to Pleistocene Cholan Formation is found from the surface to a 1029-m depth and is predominantly composed of sandstone and sandstone-siltstone alternations with weak to intense bioturbation. The Pliocene Chinshui Formation is observed from a depth of 1029- to 1303-m and predominantly consists of siltstone with weak bioturbation. From 1303- to 1712-m down there is the late Miocene to early Pliocene Kueichulin Formation which is predominantly composed of massive sandstone with minor siltstone. Below 1712 m, the Formation again resembles the younger Cholan Formation with mollusca-rich, thick, layered shale and heavy bioturbated sandstone. Four types of fault-related rocks are identified in the cores. They are the fault breccia, gouges, foliated and non-foliated cataclasites and pseudotachylytes. At least six major fault zones are found in the cores: FZ1111, FZ1153, FZ1220, FZ1580, FZ1712, and FZ1812. Among these, FZ1111 most probably corresponds to the slip surface of the Chi-Chi earthquake, the Chelungpu fault, while FZ1712 very likely represents the Sanyi fault.

Original languageEnglish
Pages (from-to)243-269
Number of pages27
JournalTerrestrial, Atmospheric and Oceanic Sciences
Volume18
Issue number2
DOIs
Publication statusPublished - 2007 Jun 1

Fingerprint

fault zone
lithology
drilling
siltstone
sandstone
Pliocene
rock
bioturbation
cataclasite
breccia
chemical property
mechanical property
shale
physical property
probe
Miocene
project
Pleistocene
earthquake

Keywords

  • Chinshui Formation
  • Fault zone architecture
  • Fault-related rocks
  • Taiwan Chelungpu-fault Drilling Project

ASJC Scopus subject areas

  • Oceanography
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)

Cite this

Characteristics of the lithology, fault-related rocks and fault zone structures in TCDP hole-A. / Song, Sheng Rong; Kuo, Li Wei; Yeh, En-Chao; Wang, Chien Ying; Hung, Jih Hao; Ma, Kuo Fong.

In: Terrestrial, Atmospheric and Oceanic Sciences, Vol. 18, No. 2, 01.06.2007, p. 243-269.

Research output: Contribution to journalArticle

Song, Sheng Rong ; Kuo, Li Wei ; Yeh, En-Chao ; Wang, Chien Ying ; Hung, Jih Hao ; Ma, Kuo Fong. / Characteristics of the lithology, fault-related rocks and fault zone structures in TCDP hole-A. In: Terrestrial, Atmospheric and Oceanic Sciences. 2007 ; Vol. 18, No. 2. pp. 243-269.
@article{3fd73231a53043f895a9063fd359cdb3,
title = "Characteristics of the lithology, fault-related rocks and fault zone structures in TCDP hole-A",
abstract = "The main objective of the Taiwan Chelungpu-fault Drilling Project (TCDP) was to conduct an in-depth probe into a fault zone of recent major activity so as to gain a better understanding of and more insight into the physical, mechanical and chemical properties involved. By the end of 2004, with the completion of the drilling of Hole-A, cuttings from 0 to 431.34 m and cores from a 431.34- to 2003.26-m depth had been obtained. Stratigraphically, the Pliocene to Pleistocene Cholan Formation is found from the surface to a 1029-m depth and is predominantly composed of sandstone and sandstone-siltstone alternations with weak to intense bioturbation. The Pliocene Chinshui Formation is observed from a depth of 1029- to 1303-m and predominantly consists of siltstone with weak bioturbation. From 1303- to 1712-m down there is the late Miocene to early Pliocene Kueichulin Formation which is predominantly composed of massive sandstone with minor siltstone. Below 1712 m, the Formation again resembles the younger Cholan Formation with mollusca-rich, thick, layered shale and heavy bioturbated sandstone. Four types of fault-related rocks are identified in the cores. They are the fault breccia, gouges, foliated and non-foliated cataclasites and pseudotachylytes. At least six major fault zones are found in the cores: FZ1111, FZ1153, FZ1220, FZ1580, FZ1712, and FZ1812. Among these, FZ1111 most probably corresponds to the slip surface of the Chi-Chi earthquake, the Chelungpu fault, while FZ1712 very likely represents the Sanyi fault.",
keywords = "Chinshui Formation, Fault zone architecture, Fault-related rocks, Taiwan Chelungpu-fault Drilling Project",
author = "Song, {Sheng Rong} and Kuo, {Li Wei} and En-Chao Yeh and Wang, {Chien Ying} and Hung, {Jih Hao} and Ma, {Kuo Fong}",
year = "2007",
month = "6",
day = "1",
doi = "10.3319/TAO.2007.18.2.243(TCDP)",
language = "English",
volume = "18",
pages = "243--269",
journal = "Terrestrial, Atmospheric and Oceanic Sciences",
issn = "1017-0839",
publisher = "中華民國地球科學學會",
number = "2",

}

TY - JOUR

T1 - Characteristics of the lithology, fault-related rocks and fault zone structures in TCDP hole-A

AU - Song, Sheng Rong

AU - Kuo, Li Wei

AU - Yeh, En-Chao

AU - Wang, Chien Ying

AU - Hung, Jih Hao

AU - Ma, Kuo Fong

PY - 2007/6/1

Y1 - 2007/6/1

N2 - The main objective of the Taiwan Chelungpu-fault Drilling Project (TCDP) was to conduct an in-depth probe into a fault zone of recent major activity so as to gain a better understanding of and more insight into the physical, mechanical and chemical properties involved. By the end of 2004, with the completion of the drilling of Hole-A, cuttings from 0 to 431.34 m and cores from a 431.34- to 2003.26-m depth had been obtained. Stratigraphically, the Pliocene to Pleistocene Cholan Formation is found from the surface to a 1029-m depth and is predominantly composed of sandstone and sandstone-siltstone alternations with weak to intense bioturbation. The Pliocene Chinshui Formation is observed from a depth of 1029- to 1303-m and predominantly consists of siltstone with weak bioturbation. From 1303- to 1712-m down there is the late Miocene to early Pliocene Kueichulin Formation which is predominantly composed of massive sandstone with minor siltstone. Below 1712 m, the Formation again resembles the younger Cholan Formation with mollusca-rich, thick, layered shale and heavy bioturbated sandstone. Four types of fault-related rocks are identified in the cores. They are the fault breccia, gouges, foliated and non-foliated cataclasites and pseudotachylytes. At least six major fault zones are found in the cores: FZ1111, FZ1153, FZ1220, FZ1580, FZ1712, and FZ1812. Among these, FZ1111 most probably corresponds to the slip surface of the Chi-Chi earthquake, the Chelungpu fault, while FZ1712 very likely represents the Sanyi fault.

AB - The main objective of the Taiwan Chelungpu-fault Drilling Project (TCDP) was to conduct an in-depth probe into a fault zone of recent major activity so as to gain a better understanding of and more insight into the physical, mechanical and chemical properties involved. By the end of 2004, with the completion of the drilling of Hole-A, cuttings from 0 to 431.34 m and cores from a 431.34- to 2003.26-m depth had been obtained. Stratigraphically, the Pliocene to Pleistocene Cholan Formation is found from the surface to a 1029-m depth and is predominantly composed of sandstone and sandstone-siltstone alternations with weak to intense bioturbation. The Pliocene Chinshui Formation is observed from a depth of 1029- to 1303-m and predominantly consists of siltstone with weak bioturbation. From 1303- to 1712-m down there is the late Miocene to early Pliocene Kueichulin Formation which is predominantly composed of massive sandstone with minor siltstone. Below 1712 m, the Formation again resembles the younger Cholan Formation with mollusca-rich, thick, layered shale and heavy bioturbated sandstone. Four types of fault-related rocks are identified in the cores. They are the fault breccia, gouges, foliated and non-foliated cataclasites and pseudotachylytes. At least six major fault zones are found in the cores: FZ1111, FZ1153, FZ1220, FZ1580, FZ1712, and FZ1812. Among these, FZ1111 most probably corresponds to the slip surface of the Chi-Chi earthquake, the Chelungpu fault, while FZ1712 very likely represents the Sanyi fault.

KW - Chinshui Formation

KW - Fault zone architecture

KW - Fault-related rocks

KW - Taiwan Chelungpu-fault Drilling Project

UR - http://www.scopus.com/inward/record.url?scp=34547604009&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547604009&partnerID=8YFLogxK

U2 - 10.3319/TAO.2007.18.2.243(TCDP)

DO - 10.3319/TAO.2007.18.2.243(TCDP)

M3 - Article

VL - 18

SP - 243

EP - 269

JO - Terrestrial, Atmospheric and Oceanic Sciences

JF - Terrestrial, Atmospheric and Oceanic Sciences

SN - 1017-0839

IS - 2

ER -