Cornard, Pauline; Dawson, Harriet; Pickering, Kevin T (2024): Photomicrographs of representative mineralogy from the Nankai subduction zone (Japan) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.969329
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Published: 2024-06-27 • DOI registered: 2024-06-27
Abstract:
Photomicrographs of representative mineralogy are here presented for each unit defined in our study. Unit A is dominated by quartz and feldspar whereas clay minerals, clinopyroxene and micas are in minor proportions (S4.1 and S4.2). Quartz, especially polycrystalline quartz, is dominant within the Unit B whereas micas and clinopyroxene are low in abundance (S4.3 and S4.4). Unit C is characterized by a high content in clay minerals as well as feldspar and monocrystalline quartz (S4.5). Unit D is characterized by a high content of polycrystalline quartz (chert) and feldspar (S4.6 and S4.7).
Supplement to:
Cornard, Pauline; Dawson, H L; Pickering, K T (2024): Sediment Provenance Along the Middle Miocene-Pleistocene Nankai Subduction Zone From Sediment Transport to Accretion: Implications for Stratigraphy in the Accretionary Prism. Geochemistry, Geophysics, Geosystems, 25(8), e2023GC011393, https://doi.org/10.1029/2023GC011393
Funding:
Natural Environment Research Council (NERC), grant/award no. NE/S016295/1: Provenance of sediments from IODP Expedition 358, (NanTroSEIZE Deep Riser Drilling: Nankai Seismogenic / Slow Slip Megathrust)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Cornard, Pauline | |||
| 2 | File content | Content | Cornard, Pauline | |||
| 3 | Binary Object (File Size) | Binary (Size) | Bytes | Cornard, Pauline | ||
| 4 | Binary Object (Media Type) | Binary (Type) | Cornard, Pauline | |||
| 5 | Binary Object (MD5 Hash) | Binary (Hash) | Cornard, Pauline |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
28 data points
Data
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| 1 Binary | 2 Content | 3 Binary (Size) [Bytes] | 4 Binary (Type) | 5 Binary (Hash) |
|---|---|---|---|---|
S4.1A.jpg | Photomicrographs of representative mineralogy for top of Unit A. Sample ID: CKY 0000 0000 0006 5276 00 (1,235.5 mbsf). A-plane polarised light (ppl). Pyrite is visible here in the form of framboids. Abbreviations: Cm = clay mineral; Cpx = clinopyroxene; Py = pyrite; Pl = plagioclase feldspar; Qz = quartz; Zrn = zircon. | 1.1 MBytes | image/jpeg | f2177f1cde81ee7a7f5f0f1e8ecfb9bc |
S4.1B.jpg | Photomicrographs of representative mineralogy for top of Unit A. Sample ID: CKY 0000 0000 0006 5276 00 (1,235.5 mbsf). B-crossed polarised light (xpl). Pyrite is visible here in the form of framboids. Abbreviations: Cm = clay mineral; Cpx = clinopyroxene; Py = pyrite; Pl = plagioclase feldspar; Qz = quartz; Zrn = zircon. | 1021.1 kBytes | image/jpeg | 59d1e4d43c9441f9bf8762167a49eb98 |
S4.2A.jpg | Photomicrographs of representative mineralogy for base of Unit A. Sample ID: CKY 0000 0000 0006 5291 00 (1,535.5 mbsf).A-plane polarised light (ppl). Abbreviations: Cb = carbonate mineral; Cm = clay mineral; Om = organic material; Pl = plagioclase feldspar; Qz = quartz. | 762.5 kBytes | image/jpeg | 5234732ef1ae4a88de6f529801b4da47 |
S4.2B.jpg | Photomicrographs of representative mineralogy for base of Unit A. Sample ID: CKY 0000 0000 0006 5291 00 (1,535.5 mbsf). B-crossed polarised light (xpl). Abbreviations: Cb = carbonate mineral; Cm = clay mineral; Om = organic material; Pl = plagioclase feldspar; Qz = quartz. | 835.4 kBytes | image/jpeg | 9782485a791e51190ebec143ff0ea295 |
S4.3A.jpg | Photomicrographs of representative mineralogy for Unit B. Sample ID: CKY 0000 0000 0006 5294 00 (1,595.5 mbsf). A-plane polarised light (ppl). Muscovite shows evidence of folding. Abbreviations: Chl = chlorite; Cht = chert; Cm = clay mineral; Ms = muscovite; Pl = plagioclase feldspar; Qz = quartz; Zrn = zircon. | 726.4 kBytes | image/jpeg | 45ff28dbbdfd114a3977b0f3ed565bab |
S4.3B.jpg | Photomicrographs of representative mineralogy for Unit B. Sample ID: CKY 0000 0000 0006 5294 00 (1,595.5 mbsf). B-crossed polarised light (xpl). Muscovite shows evidence of folding. Abbreviations: Chl = chlorite; Cht = chert; Cm = clay mineral; Ms = muscovite; Pl = plagioclase feldspar; Qz = quartz; Zrn = zircon. | 913.9 kBytes | image/jpeg | b4e7ecf9beca4d8e4207920eab3de7f4 |
S4.4A.jpg | Photomicrographs of representative mineralogy for Unit B. Sample ID: CKY 0000 0000 0006 5294 00 (1,595.5 mbsf). A-plane polarised light (ppl). The large quartz grain in the centre of the field of view displays undulose extinction, suggesting the mineral has deformed plastically. Abbreviations: Cht = chert; Qz = quartz. | 844.4 kBytes | image/jpeg | 0067f5de9b81c3d15f3e05a23cc90c38 |
S4.4B.jpg | Photomicrographs of representative mineralogy for Unit B. Sample ID: CKY 0000 0000 0006 5294 00 (1,595.5 mbsf). B-crossed polarised light (xpl). The large quartz grain in the centre of the field of view displays undulose extinction, suggesting the mineral has deformed plastically. Abbreviations: Cht = chert; Qz = quartz. | 971.5 kBytes | image/jpeg | 7ab4be24ab1d13034ac6f0e186c90de1 |
S4.5A.jpg | Photomicrographs of representative mineralogy for Unit C. Sample ID: CKY 0000 0000 0006 5311 00 (average depth = 2,045.5 mbsf). A-plane polarised light (ppl). Clay minerals are seen here surrounding the mineral grains, suggesting the matrix has been replaced/altered. Abbreviations: Cb = carbonate mineral; Om = organic material; Pl = plagioclase feldspar; Py = pyrite; Qz = quartz. | 948.5 kBytes | image/jpeg | 6a9bb937afa5efed7af8fb1d36ec97b0 |
S4.5B.jpg | Photomicrographs of representative mineralogy for Unit C. Sample ID: CKY 0000 0000 0006 5311 00 (average depth = 2,045.5 mbsf). B-crossed polarised light (xpl). Clay minerals are seen here surrounding the mineral grains, suggesting the matrix has been replaced/altered. Abbreviations: Cb = carbonate mineral; Om = organic material; Pl = plagioclase feldspar; Py = pyrite; Qz = quartz. | 956.6 kBytes | image/jpeg | 3d2dd6543a12de23bf070f6690c56614 |
S4.6A.jpg | Photomicrographs of representative mineralogy for Unit D. Sample ID: CKY 0000 0000 0006 5264 00 (2,173.46 mbsf). A-plane polarised light (ppl). Abbreviations: Cht = chert; Cm = clay mineral; Fsp = feldspar; Om = organic material; Qz = quartz. | 888.5 kBytes | image/jpeg | ce80fbfd70e6b5ac45908ab9138c79ca |
S4.6B.jpg | Photomicrographs of representative mineralogy for Unit D. Sample ID: CKY 0000 0000 0006 5264 00 (2,173.46 mbsf). B-crossed polarised light (xpl). Abbreviations: Cht = chert; Cm = clay mineral; Fsp = feldspar; Om = organic material; Qz = quartz. | 1012 kBytes | image/jpeg | d4ce2b484ced70f1c1e4beae01185377 |
S4.7A.jpg | Photomicrographs of representative mineralogy for Unit D. Sample ID: CKY 0000 0000 0006 5269 00 (2,192.31 mbsf). A-plane polarised light (ppl). Abbreviations: Cht = chert; Pl = plagioclase feldspar; Qz = quartz; Zrn = zircon. | 939 kBytes | image/jpeg | 74ff1a64ac94a38eb81c36f15424c71d |
S4.7B.jpg | Photomicrographs of representative mineralogy for Unit D. Sample ID: CKY 0000 0000 0006 5269 00 (2,192.31 mbsf). B-crossed polarised light (xpl). Abbreviations: Cht = chert; Pl = plagioclase feldspar; Qz = quartz; Zrn = zircon. | 1 MBytes | image/jpeg | 8a865e9c6a6d795c253806e7c269a067 |