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This report is one of a series resulting from a study by the U.S. Geological Survey to determine the occurrence and distribution of naturally radioactive substances in water. From 1954-57 uranium and radium concentrations were determined in 561 samples, mainly of ground water, having wide geologic and geographic distribution. These...

The lower Ipswich River basin is that part of the Ipswich River drainage basin below the Geological Survey stream-gaging station at South Middleton in northeastern Massachusetts (fig. 1). It includes about 110 square miles between the gaging station at South Middleton and the Atlantic Ocean. This report presents basic data collected...

The surface-water records for the 1962 water year for gaging stations, partial-record stations, and miscellaneous sites within the State of Indiana are given in this report. For convenience there are also included records for a few pertinent gaging stations in bordering States. The records were collected and computed by the...

In the ten years since the publication of the national Bureau of Standards comprehensive tables of thermochemical properties, by Rossini and other (1952), a very large body of modern calorimetric and equilibrium data has become available. Because of the complex interrelations among many thermochemical data and the necessity for internal...

Carboxylic esters and lactones react with alkaline hydroxylamine to yield hydroxamates; these in acidic solution form colored iron(III) complexes. A photometric determination of such esters and lactones is thus permitted and has been extensively applied ( I-6). Hestrin ( 3) utilized this method for the microdetermination of acetylcholine and his...

Summit elevations in the Lebanon Valley, part of the Great Valley, range from 440 to 720 feet above msl (mean sea level). This range cannot be accounted for adequately by the peneplain concept. Although accordant summits, the chief evidence for peneplains, occur over large areas, summits are not accordant between...

The massive Salmon River Mountains of interior Idaho are bounded on the west by a belt 30 miles wide of post-Miocene, west-tilted normal-fault blocks and west-dipping monoclines. The belt is coincident with the western border zone of the middle Cretaceous Idaho batholith, as it extends from the west edge of the massive...

No abstract available....

Landslide blocks of latest Oligocene or earliest Miocene age are preserved at several localities in northwestern South Dakota and southeastern Montana. These tilted blocks contain Late Cretaceous to late Oligocene rocks and are unconformably overlain by nearly horizontal strata of the Arikaree Formation of Miocene age. Undisturbed rocks of late...

A narrow gravity minimum anomaly of amplitude 30 mgals indicates that northern Owens Valley, California, a narrow fault-bounded trough or graben filled with Cenozoic clastic deposits to a depth of as much as 8,000 ft. Seismic-refraction measurements support this conclusion. Aeromagnetic and gravity measurements define a small, dense, and magnetic body...

Annite, KFe3AISi3O10(OH)2 a member of the iron biotites and the ferrous analogue of phlogopite, has been synthesized and its phase relations have been determined as functions of temperature, fugacity of oxygen (fo2), and total pressure (Ptotal≈PH2O+PH2). A method for controlling fo2at high total pressures is described, and data for the 'oxygen...

No abstract available....

The ore bodies of the Highland-Surprise Mine are replacements along shear zones in quartzose slate, quartzite, and phyllite of the Prichard Formation of the Belt series (Precambrian). Pyrite, arsenopyrite, pyrrhotite, sphalerite, chalcopyrite, and galena are the chief metallic minerals and were probably deposited in that order. Temperatures of formation were...

Hornblendes in amphibolite interlayers in the paragneiss of the northwest Adirondack Mountains undergo systematic changes in color, composition, and density during progressive metamorphism from almandine-amphibolite to hornblende-granulite facies. In contrast, indices of refraction of the hornblendes remain about constant. In the almandine-amphibolite facies the amphibolite layers have the bulk composition of a saturated basalt and...

Wood cut by Castor canadensis(?) has been found at or near the base of five peat deposits studied in open exposure. Beavers apparently entered the region about 12,000 years ago and rapidly occupied most low-lying places. Many existing bogs may be the result of early dams. The disturbance of pond sediments...

Late Cretaceous Tuscaloosa Formation occurs as discontinuous remnants that cap many of the ridges in the Western Highland Rim. Typically the formation consists of well-rounded, poorly sorted chert gravel which is trimodal in size distribution. The gravel fraction (mode 15 to 40+ mm) consists of Devonian and Mississippian chert and a small percentage of...

During experiments on sediment transport and resistance to flow with a uniform 0.33-mm sand, data were recorded on the movement of individual rocks having intermediate diameters from about 0.1 to 0.5 foot. The experiments were conducted in a flume 2 feet wide by 60 feet long and for most runs, depth was held...

The design and operation of a microscope freezing stage developed for use at magnifications up to 500X are described. It makes possible studies of low-temperature phase changes such as the freezing of a saline water phase, and hence an estimate of the total salt concentration, in fluid inclusions as small as 10 microns (10-6 milligram in...

Massive and disseminated pyrrhotite-chalcopyrite-pyrite ore replaced a fault zone in Precambrian Carolina Gneiss of Keith (1). Closely following sulfide deposition, vein sulfides and silicates in the wall rock were recrystallized under a rising temperature gradient to coarse-grained unoriented aggregates that contain late pyrite porphyroblasts in pyrrhotite. Boudinage, dilation, and flow structures are common....