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Table 4 Documented coal layers at Site C0020

From: Quantitative logging data clustering with hidden Markov model to assist log unit classification

Depth of reported coal layers thicker than 30 cm (mbsf)

Log unit

Cluster N

1529.5–1530.1

Unit 2b

1529.0–1530.2

1539.4–1539.7

1539.0–1539.8

1543.4–1544.0

1542.2–1544.2

1704.0–1704.4

1839.1–1840.0

Unit 3a

1839.0–1840.2

1846.3–1846.9

1845.4–1846.6

1863.7–1864.6

1863.4–1864.4

1868.6–1869.0

1916.2–1923.5

Unit 3b

1916.2–1923.8

1944.4–1947.9

1944.2–1949.0

1958.4–1958.7

1958.2–1958.8

1978.8–1979.3

1978.6–1979.4

1993.7–1994.8

1993.4–1994.6

1997.5–1998.8

1997.2–1998.8

2001.0–2001.2

2002.3–2003.0

2002.2–2003.2

2027.0–2028.1

2026.8–2028.4

2043.9–2045.3

2043.4–2046.2

2054.7–2055.0

Unit 4b

2054.6–2055.6

2448.4–2449.3

2448.2–2449.6

2455.0–2458.0