4
depth texture, grain size, etc.) and record them in the field
notebook. Collect samples carefully by scraping directly
into a well-labeled sample bag, (include sampling depth
on the sample bag) or decontaminated container using a
small pick, trowel or scoop to avoid cross-contamination
from different lithologies. In addition, collect samples from
the midpoint of the profile as much as possible sampling
the edge can result in mixing lithologies. Assign one GPS
location and waypoint to the pit and different sample IDs
to each lithology sampled.
Drill core samples are collected from existing drill core.
Core is generally described (logged) and photographed
before sampling. Only ½ of the core is split or sawed, with
the remaining core left in the box undisturbed. If the core
has already been sampled, then only ¼ is removed. A note
Table 1. Samples from coal fields in the San Juan and Raton basins. Coal fields and reserves are delineated by Hoffman (1996,
2017). District Id is from the New Mexico Mines Database (McLemore, 2010a, 2017). Representative samples have been and
will be collected from each coal field. At least 3 samples will be collected from each coal field. Red=no analyses at this time
District
id
District (coal
field)
Year of
Initial
Production
Year of Last
Production
Estimated
Cumulative
Production Formation
Number
of
samples
analyzed
Number
of coal
samples
analyzed
Demonstrated
resources,
million tons
(Hoffman,
2017)
DIS257 Barker Creek 1905 Menefee 9 6 183
DIS150 Bisti 1980 1988 40,075,148 Fruitland 54 19 872
DIS208 Carthage 1861 1963 ?Crevasse
Canyon, Tres
Hermanos
2 2 30
DIS181 Cerrillos 1882 1962 5,500,000 Menefee 2 2 46.5
DIS259 Chaco Canyon 1905 Menefee 3 2 46
DIS260 Chacra Mesa 1945 Menefee 43 15 140
DIS118 Crownpoint 1914 1951 20,758 Crevasse Canyon 12 8 663
na Dakota Dakota 5 5
DIS262 Datil 1917 1940 66,980 Dakota 2 2 47
DIS155 Fruitland 1889 2001 3,137,957,050 Crevasse
Canyon, Tres
Hermanos
11 10 550
DIS119 Gallup 1882 2001 121,522,629,885 Fruitland 50 27 610
DIS156 Hogback 1907 1971 301,237 Crevasse Canyon 10 0 66
DIS264 Jornada del
Muerto
1927 Menefee 6 3 0
DIS174 La Ventana 1904 1983 Crevasse Canyon 5 5 263
DIS146 Monero 1882 1970 5,277,552 Menefee 62 13 40
DIS016 Mount Taylor 1952 1953 69,948 Menefee 8 6 19
DIS157 Navajo 1963 9999 4,714,689,147 Crevasse Canyon 19 9 1340
DIS258 Newcomb Fruitland 3 0 126
DIS021 Raton 1898 2002 954,470,032 Menefee 65 26
DIS003 Rio Puerco 1937 1944 139,555 Vermejo, Raton 0 0 25
DIS009 Salt Lake 1987 1987 100,000 Crevasse Canyon 2 1 323
DIS121 San Mateo 1983 2001 954,470,032 Moreno Hill 9 4 385
DIS097 Sierra Blanca 1899 1958 ?Crevasse Canyon 8 4 42
DIS261 Standing Rock 1952 1958 Menefee 24 4 392
DIS158 Star Lake Menefee 51 29 946
DIS263 Tierra Amarilla 1955 1955 Fruitland 0 0 4.5
DIS159 Toadlena Menefee 16 6 0
DIS124 Zuni 1908 1926 16,010 Menefee 1 1 83
Other samples 140 0
total 622 209 7153.5
depth texture, grain size, etc.) and record them in the field
notebook. Collect samples carefully by scraping directly
into a well-labeled sample bag, (include sampling depth
on the sample bag) or decontaminated container using a
small pick, trowel or scoop to avoid cross-contamination
from different lithologies. In addition, collect samples from
the midpoint of the profile as much as possible sampling
the edge can result in mixing lithologies. Assign one GPS
location and waypoint to the pit and different sample IDs
to each lithology sampled.
Drill core samples are collected from existing drill core.
Core is generally described (logged) and photographed
before sampling. Only ½ of the core is split or sawed, with
the remaining core left in the box undisturbed. If the core
has already been sampled, then only ¼ is removed. A note
Table 1. Samples from coal fields in the San Juan and Raton basins. Coal fields and reserves are delineated by Hoffman (1996,
2017). District Id is from the New Mexico Mines Database (McLemore, 2010a, 2017). Representative samples have been and
will be collected from each coal field. At least 3 samples will be collected from each coal field. Red=no analyses at this time
District
id
District (coal
field)
Year of
Initial
Production
Year of Last
Production
Estimated
Cumulative
Production Formation
Number
of
samples
analyzed
Number
of coal
samples
analyzed
Demonstrated
resources,
million tons
(Hoffman,
2017)
DIS257 Barker Creek 1905 Menefee 9 6 183
DIS150 Bisti 1980 1988 40,075,148 Fruitland 54 19 872
DIS208 Carthage 1861 1963 ?Crevasse
Canyon, Tres
Hermanos
2 2 30
DIS181 Cerrillos 1882 1962 5,500,000 Menefee 2 2 46.5
DIS259 Chaco Canyon 1905 Menefee 3 2 46
DIS260 Chacra Mesa 1945 Menefee 43 15 140
DIS118 Crownpoint 1914 1951 20,758 Crevasse Canyon 12 8 663
na Dakota Dakota 5 5
DIS262 Datil 1917 1940 66,980 Dakota 2 2 47
DIS155 Fruitland 1889 2001 3,137,957,050 Crevasse
Canyon, Tres
Hermanos
11 10 550
DIS119 Gallup 1882 2001 121,522,629,885 Fruitland 50 27 610
DIS156 Hogback 1907 1971 301,237 Crevasse Canyon 10 0 66
DIS264 Jornada del
Muerto
1927 Menefee 6 3 0
DIS174 La Ventana 1904 1983 Crevasse Canyon 5 5 263
DIS146 Monero 1882 1970 5,277,552 Menefee 62 13 40
DIS016 Mount Taylor 1952 1953 69,948 Menefee 8 6 19
DIS157 Navajo 1963 9999 4,714,689,147 Crevasse Canyon 19 9 1340
DIS258 Newcomb Fruitland 3 0 126
DIS021 Raton 1898 2002 954,470,032 Menefee 65 26
DIS003 Rio Puerco 1937 1944 139,555 Vermejo, Raton 0 0 25
DIS009 Salt Lake 1987 1987 100,000 Crevasse Canyon 2 1 323
DIS121 San Mateo 1983 2001 954,470,032 Moreno Hill 9 4 385
DIS097 Sierra Blanca 1899 1958 ?Crevasse Canyon 8 4 42
DIS261 Standing Rock 1952 1958 Menefee 24 4 392
DIS158 Star Lake Menefee 51 29 946
DIS263 Tierra Amarilla 1955 1955 Fruitland 0 0 4.5
DIS159 Toadlena Menefee 16 6 0
DIS124 Zuni 1908 1926 16,010 Menefee 1 1 83
Other samples 140 0
total 622 209 7153.5