The physical preparation and chemical analysis of NIST SRMs 2786 and 2787, lead paint in soil
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Open-File Report↗
Geology topics
M.J. Malcolm
Publications and source records attributed to M.J. Malcolm.
Metal distribution in overbank sediments from the Alamosa River, south-central Colorado
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Open-File Report↗
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, and rock samples from the Owyhee Breaks (OR-003-059) and the Blue Canyon (OR-003-073) Wilderness Study Areas, Malheur County, Oregon
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Open-File Report↗
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, rock, and water samples from the North Pole Ridge (OR-005-008), Thirtymile (OR-005-001), and Lower John Day (OR-005-006) Wilderness Study Areas, Sherman and Gilliam Counties, Oregon
No abstract available.
Oregon↗
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, and rock samples from the Spring Basin Wilderness Study Area (OR-005-009), Wheeler County, Oregon
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Open-File Report↗
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, and rock samples from the Sacatar Meadows Wilderness Study Area (CA-010-027), Tulare County, California
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Open-File Report↗
Analytical results and sample locality map of rock samples from the Park Range Wilderness Study Area, Nye County, Nevada
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Open-File Report↗
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, and rock samples from the Rough Hills Wilderness Study Area, Elko County, Nevada (NV-010-151)
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Open-File Report↗
Analytical results and sample locality map of heavy-mineral-concentrate and rock samples from the Little Humboldt River Wilderness Study Area (NV-010-132), Elko County, Nevada
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Open-File Report↗
Analytical results and sample locality map of heavy-mineral- concentrate and rock samples from the Kingston Range Wilderness Study Area (CDCA-222), San Bernardino County, California
During 1984, 60 stream sites were sampled for the presence of Giardia sp. cysts. The sampling sites ranged in elevation from 6 ,000 to 12,000 feet, and were distributed over a distance of more than 200 miles, from the Lake Tahoe basin in the north to Mt. Whitney in the south. Cysts of Giardia were detected in 27 of 78 samples. The number of cysts detected ranged from 1 to 41. Of the 27 samples positive for Giardia, only 1 cyst was detected in each of 10 samples, 2 cysts were detected in each of 8 samples, 3 cysts were detected in each of 3 samples, 4 cysts were detected in each of 2 samples, and 5, 6, 14, and 41 cysts were detected in 1 sample each. (USGS)
Open-File Report↗
Analytical results and sample locality map of heavy-mineral-concentrate and rock samples from the Castle Peaks Wilderness Study Area (CDCA- 266), San Bernardino County, California
The report presents water-quality and geohydrologic information for 106 public water-supply wells in Illinois. These wells were sampled during April to December 1984 as part of a pilot program to develop a ground-water observation network in the State. The pilot program was designed to sample single-aquifer wells from three major aquifer systems--(1) sand and gravel, both confined and unconfined; (2) Silurian dolomite; and (3) the Ironton-Galesville deep sandstone. Data are tabulated for water temperature, pH, specific conductance, oxidation-reduction potential, ammonia nitrogen, nitrate + nitrite nitrogen, phosphorus, silica, arsenic, lead, mercury, fluoride, chloride, sulfate, cyanide, phenols, selenium, residue on evaporation at 180 degrees Celsius, alkalinity, calcium, magnesium, sodium, potassium, barium, boron, beryllium, cadmium, chormium, copper, cobalt, iron, aluminum, manganese, nickel, silver, strontium, vanadium, zinc, and selected geohydrologic information.
California↗