Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Boston region of the Atlantic coast area. Scale 1:250,000.

Report issued by the Bureau of Mines over exploration of mineral deposits on Beryl Mountain. As stated in the introduction, "testing by surface cuts, trenching, and tunneling was conducted by the Bureau of Mines from August to December 1943" (p. 1). This report includes maps.

Report discussing earthquake activity in the United States during 1940. The report is broken down by regions and has sections for specific earthquakes.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Sherbrooke quadrangle including maps documenting geophysical and geochemical data, as well as magnetic, ancillary and radiometric data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Lewiston quadrangle including maps documenting geophysical and geochemical data, as well as magnetic, ancillary and radiometric data.

From abstract: This data release presents preliminary results of ground water, stream sediment, and stream water reconnaissance in the National Topographic Map Series (NTMS) Portland 10 x 20 quadrangle. Stream sediment and stream water samples were collected from small streams at 1094 sites for a nominal density of one site per 13 square kilometers (five square miles) in rural areas. Ground water samples were collected at 560 sites for a nominal density of one site per 26 square kilometers (ten square miles). Neutron activation analysis (NAA) results are given for uranium and 16 other elements in sediments, and for uranium and 9 other elements in ground water and surface water. Field measurements and observations are reported for each site. Analytical data and field measurements are presented in tables and maps. Statistical summaries of data and a brief description of results are given. A generalized geologic map and a summary of the geology of the area are included.

From abstract: Mica has been mined in New Hampshire since 1803. Production from 1908 through 1939 has aggregated 13,326,990 pounds of sheet and punch mica, an annual average of 416,470 pounds. Since 1931 production has been below this average, because of economic conditions rather than depletions. The mica-bearing pegmatites of the Grafton and Keene districts occur mostly in sillimanite-mica schist adjacent to large areas of biotite gneiss. The pegmatite bodies range from a fraction of an inch to more than 200 feet in thickness; most of them are crosscutting, and about 75 percent strike northeast. Mica occurs sporadically in most of them but where present in commercial quantities it is localized in one or more of the following zones: (1) In quartz-plagioclase-muscovite zones 2 to 10 feet from the walls of large pegmatite bodies, (2) in or near quartz masses that occur mostly near the centers of the bodies, (3) in thin dikes 5 to 15 feet thick or in similar offshoots from larger bodies, (4) within large pegmatite bodies, in more or less tabular streaks or zones composed principally of plagioclase, quartz, and muscovite.

Report issued by the Bureau of mines over studies conducted on beryllium deposits in New England. Evaluations of the deposits are presented and discussed. This report includes tables, maps, illustrations, and photographs.

"The purpose of this report is to present the results of a condition survey performed at Pease Air Force Base (PAFB), New Hampshire, during 14-18 August 1972. The inspection for effects of frost action was performed on 1 June 1972. The three major areas of interest considered in this condition survey were structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost action to the pavement facilities" (p. 1).

Report discussing a 1948 geological examination of 7,662 miles of roadside rocks in Vermont, Connecticut, Rhode Island, and southeastern New York to find deposits of radioactive materials.

From Introduction: "The primary purpose of this work was to summarize and bring up to date the information on beryl resources as gained from investigations during 1942-45, to examine in detail certain beryl-bearing pegmatites discovered and developed in recent years, and to study other pegmatites and groups of pegmatites known or suspected to contain beryl."

From abstract: "Age determinations by the Larsen method are reported for the four Paleozoic plutonic series of New Hampshire."

Report discussing a study on the radioactivity of red and green phase Conway granite from Redstone, New Hampshire. Information regarding the collection and measurement methods are included as well as experimental data and calculations.

Appendices containing data on uranium availability in the Portland Quadrangle to accompany a report on U.S. uranium resources in Washington.

Appendices containing uranium occurrence data for the Glens Falls Quadrangle in addition to tabulated chemical analyses and surface radioactivity data to accompany a report on U.S. uranium resources in New York, Vermont and New Hampshire.

From abstract: In 1948, 7,662 miles of roadside rocks and soils in Vermont, New Hampshire, Connecticut, Rhode Island, and southeastern New York were traversed with a car-mounted Geiger-Mueller counter. The observed distribution of the abnormally radioactive rocks and soils is limited to certain areas, herein called "radioactive provinces," that are separated from each other by areas of essentially nonradioactive rock.

From Introduction: "The Glens Falls NTMS Quadrangle of New York, Vermont, and New Hampshire (Fig. 1) was evaluated to identify and delineate areas and geologic units that have characteristics favorable for uranium deposits. All geologic environments in the quadrangle were studied by surface methods and, where possible, were inferred to a depth of 1500 m."

From Purpose and Scope of Study: "The Portland Quadrangle, Maine, and New Hampshire (Fig. 1), was evaluated by identifying districts and rock units that exhibit characteristics favorable for uranium deposits (Mickle and Mathews, eds., 1978)."

Report concerning "[a]n airborne gamma-radiation survey of Connecticut, Rhode Island, and parts of New York, Massachusetts, New Hampshire, and Vermont" (p. 5) made between 1958 and 1960 that indicated that a broad range of radioactivity exists in those areas depending on the type of bedrock. Correlations are drawn between this radioactivity and the geology of the region.

Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Portland region of the Atlantic coast area. Scale 1:250,000.

Map with graded color shading to show levels of naturally-occurring gamma aeroradioactivity within the New England region of the U.S. Details about the survey and map creation are printed at right. Scale 1:250,000.

Report concerning "[a]n airborne gamma-radiation survey of Connecticut, Rhode Island, and parts of New York, Massachusetts, New Hampshire, and Vermont" (p. 5) made between 1958 and 1960 that indicated that a broad range of radioactivity exists in those areas depending on the type of bedrock. Correlations are drawn between this radioactivity and the geology of the region.

Supplementary data containing a geologic-tectonic map of the Portland Quadrangle, in addition to mineral occurrences, sample site locations, and elemental distribution data to accompany a report on hydrogeochemical and stream sediment reconnaissance in Maine and New Hampshire.

Average record (statistical analysis) data listings taken during aerial gamma-ray and magnetic surveys of the Lewiston quadrangle in Maine, New Hampshire, and Vermont.