Wagnerite with isokite from the Benson Mines, west-central Adirondack Highlands, New York

1992 ◽  
Vol 56 (383) ◽  
pp. 227-233 ◽  
Author(s):  
Howard W. Jaffe ◽  
Leo M. Hall ◽  
Howard T. Evans
Keyword(s):  
New York ◽  
New York State ◽  
Index Of Refraction ◽  
The West ◽  
Space Group ◽  
Fine Grained ◽  
West Central ◽  
Wet Chemical ◽  
Image Position ◽  
Transverse Fractures

AbstractThe rare fluophosphate minerals wagnerite, ideally Mg2(PO4)F, and isokite, ideally CaMg(PO4)F, are intimately associated with magnetite-hematite deposits in sillimanite-, garnet-, and pyroxene-rich paragneisses and migmatites at the Benson Mines, near Star Lake in the west-central Adirondack Highlands of New York State. Coarsely crystalline wagnerite occurs in lenticular masses, typically 4 × 8 cm, delineated by sharply cross-cutting, sinuous, 2 cm-wide veins of fine-grained, fibrous to platy isokite and granular fluorapatite. These also penetrate transverse fractures across wagnerite lenses. Isokite formed from the introduction of Ca- and O-rich hydrothermal solutions into wagnerite. Both minerals are monoclinic: wagnerite crystallises in space group P21/a with a = 11.945, b = 12.717, c = 9.70 Å, β = 108.18°, V = 1400.2 Å3, D(calc) = 3.291 g/cm3 for Z = 16; isokite crystallises in space group A2/a with a = 6.909, b = 8.746, c = 6.518 Å, β = 112.20°, V = 364.7 Å3, D(calc) = 3.248 for Z = 4. Optical properties for wagnerite are: α = 1.5845, β = 1.5875, γ = 1.6010, 2V = 51°(calc.) disp = r < v weak, absorption α < β > γ with α = col., β = pale yel., γ = v. pale yel. For isokite only a mean index of refraction, n = 1.598, could be measured. Wet chemical analysis of wagnerite containing a calculated 11.4% of isokite as fine lamellae, gave the formula:

scholarly journals Age and origin of the Cannon Point syenite, Essex County, New York: southernmost expression of Monteregian Hills magmatism?

2017 ◽  
Vol 54 (4) ◽  
pp. 379-392
Author(s):  
David G. Bailey ◽  
Marian Lupulescu ◽  
Jeffrey Chiarenzelli ◽  
Jonathan P. Traylor
Keyword(s):  
New York ◽  
New York State ◽  
Alkali Feldspar ◽  
Crustal Material ◽  
Lake Champlain ◽  
Essex County ◽  
York State ◽  
Fine Grained ◽  
The North ◽  
Basement Faults

Two syenite sills intrude the local Paleozoic strata of eastern New York State and are exposed along the western shore of Lake Champlain. The sills are fine-grained, alkali feldspar syenites and quartz syenites, with phenocrysts of sanidine and albite. The two sills are compositionally distinct, with crossing rare earth element profiles and different incompatible element ratios, which eliminates the possibility of a simple petrogenetic relationship. Zircon extracted from the upper sill yields a U–Pb age of 131.1 ± 1.7 Ma, making the sills the youngest known igneous rocks in New York State. This age is similar to that of the earliest intrusions in the Monteregian Hills of Quebec, >100 km to the north. Sr and Nd radiogenic isotope ratios are also similar to those observed in some of the syenitic rocks of the eastern Monteregian Hills. The Cannon Point syenites have compositions typical of A-type, within-plate granitoids. They exhibit unusually high Ta and Nb concentrations, resulting in distinct trace element signatures that are similar to those of the silicic rocks of the Valles Caldera, a large, rift-related magmatic system. We suggest that the Cannon Point syenites were melts derived primarily by anatexis of old, primitive, lower crustal material in response to Mesozoic rifting and to the intrusion of mantle-derived magmas. The sills indicate that the effects of continental rifting were spatially and temporally extensive, resulting in the reactivation of basement faults in the Lake Champlain Valley hundreds of kilometers west of the active rift boundary, and crustal melting >50 Ma after the initiation of rifting.

The Genesee Connection: The Origins of Iroquois Culture in West-Central New York

1986 ◽  
Vol 7 (1) ◽  
pp. 15-44
Author(s):  
Mary Ann Palmer Niemczycki
Keyword(s):  
New York ◽  
Diagnostic Criteria ◽  
Current Concept ◽  
The West ◽  
Diagnostic Significance ◽  
West Central ◽  
Central New York

The Genesee Valley has long been recognized as a center of Iroquois development, but the connection between Owasco sites in the Genesee and Iroquois sequences in the adjacent regions has never been adequately demonstrated. Attempts to identify transitional Owasco-Iroquois sites in this region have been hampered by the use of diagnostic criteria based on data from eastern New York. This article examines ceramic patterns in the Genesee and establishes a regional cultural sequence based on ceramic criteria which have local diagnostic significance. This sequence reveals the transition from Owasco to Iroquois culture begins in the Genesee with a sudden influx of Ontario Iroquois ceramic traits from the west ca. 1250 A.D. This Owasco-Ontario Iroquois connection in the Genesee negates certain assumptions regarding Iroquois origins and alters our current concept of in situ development.

scholarly journals Selection Preferences for Crabapple Cultivars and Species

2003 ◽  
Vol 13 (3) ◽  
pp. 522-526 ◽  
Author(s):  
James P. Romer ◽  
Jeffery K. Iles ◽  
Cynthia L. Haynes
Keyword(s):  
New York ◽  
Venturia Inaequalis ◽  
Apple Scab ◽  
The United States ◽  
Geographic Region ◽  
The West ◽  
Public And Private ◽  
West Central ◽  
Wide Range ◽  
Growth Habits

Crabapples (Malus spp.) are commonly planted ornamental trees in public and private landscapes. Hundreds of selections are available that represent a wide range of growth habits, ornamental traits, and varying degrees of resistance/susceptibility to disease. We distributed 1810 questionnaires in 13 states (Oregon, Washington, Utah, Colorado, Minnesota, Iowa, Missouri, Illinois, Indiana, Michigan, Ohio, New York, and Pennsylvania) to members of either nursery and landscape associations or the Associated Landscape Contractors of America (ACLA, Herndon, Va.) to identify crabapple preferences across a broad geographic region of the United States. We also were interested in learning if regional disease problems were important to green-industry professionals as they decide which crabapples to include in their inventories. Our respondent population numbered 511 (28.2% response rate). A large percentage of respondents (79.4%) said their retail clients focused mostly on fl ower color when choosing crabapples for the home landscape, while commercial clients showed slightly more interest in growth habit (32.5%) than fl ower color (28.7%). `Prairifire' was identified by respondents in all regions, except the west-central (Colorado and Utah), as the crabapple most frequently recommended to clients when tree size is not important. Respondents in the west-central region most often (48.7%) recommend the fruitless selection `Spring Snow'. Respondents in all regions, except the west-central, identified apple scab (Venturia inaequalis) as the most prevalent crabapple disease and named scab-susceptible `Radiant' as the selection most frequently discontinued.

The Correlation of Sciences in the Investigation of Nervous and Mental Diseases

1898 ◽  
Vol 44 (187) ◽  
pp. 825-827
Keyword(s):  
New York ◽  
New York State ◽  
Skilled Workers ◽  
The West ◽  
Local Authorities ◽  
Interesting Article ◽  
Mental Diseases ◽  
Physiological Chemistry ◽  
Comprehensive Study ◽  
The Ideal

In the present number we publish an interesting article by Dr. Ira Van Giesen, Superintendent of the Pathological Institute of the Commission in Lunacy of the State of New York, upon the above subject. The necessity for a many-sided, comprehensive study of insanity is earnestly represented by Dr. Van Giesen. It is very much to the credit of the New York State Lunacy Commission that it has recognised the importance of the collaboration of skilled workers in various departments of science for the elucidation of the problems of mental and nervous disorders, and has established an adequately equipped institute where the work can be efficiently carried on. Each department of the institute is in charge of a trained investigator, and the whole is under the supervision of a Director. We question very much whether the like of this institute is to be found on the Continent—we refer, of course, only to the special department of work with which it is concerned. As for our own country, it may confidently be stated that we have nothing to compare with it. In London and Edinburgh the pathological laboratories in connection with the asylums are within easy reach of the great hospitals, where correlated branches of work are in vigorous existence; but this is a very different thing from having the several departments in association at a single scientific centre, in charge of officials working under one authority. Several inconveniences must attach to this dissociation of branches of work. Nevertheless we recognise the propriety of an attitude of grateful appreciation in respect to these departures. They certainly constitute a long step in advance of the condition of things obtaining elsewhere in the kingdom. Elsewhere local authorities have provided a mortuary in connection with their asylums, and of late we believe that a room “for the finer histological work”—a phrase somewhat familiar in official reports—has in many instances been added thereto. Immured therein the pathologist too often finds himself in need of the sympathy of workers in the sister sciences. Problems arise upon which he would fain have the light of bacteriology, of physiological chemistry, of animal experimentation, and his work must frequently remain stunted for the lack thereof. Such an institute as that now referred to is doubtless a costly undertaking, and could scarcely be expected from any local authorities in this country but the most wealthy, or from combination of the less wealthy. We anticipate that the Hospital for Acute Cases in the West Riding of Yorkshire will be opened shortly, and if, as we believe, there are to be in connection therewith various departments of investigation, this may perhaps with justice be described as the first step in this country in the direction of the ideal institute. Such a departure cannot fail to be watched with the greatest interest by those engaged in the treatment of mental diseases.

Cytogéographie de l'Aster cordifolius (Asteraceae : Astereae) au Québec

1989 ◽  
Vol 67 (7) ◽  
pp. 2114-2119
Author(s):  
André Legault ◽  
Luc Brouillet
Keyword(s):  
New York ◽  
New Brunswick ◽  
New England ◽  
New York State ◽  
The West ◽  
York State ◽  
Chromosomal Races ◽  
The One ◽  
Experimental Crosses ◽  
Ecological Differences

The chromosome numbers of 209 individuals of Aster cordifolius L. from ca. 130 localities from the provinces of Quebec and New Brunswick were determined; 122 were diploid and 87, tetraploid. Four populations are mixed, but no triploid was found; experimental crosses beween the two cytotypes failed. Genic exchanges do not appear to exist between the two races, at least not via normal gametes. In Quebec, the two cytotypes are sympatric in the Richelieu valley; west of this area, only tetraploids are found, and east of it, only diploids. This distribution pattern continues the one observed in Ontario, New York State, and New England, where the contact zone is, however, wider. No obvious ecological differences were noted between the two chromosomal races. Postglacial migration on either side of the Appalachian–Adirondack axis, tetraploids to the west and diploids to the east, appears to explain the distribution of cytotypes of A. cordifolius in Quebec.

Summary of a revision of New York State Ordovician eurypterids: implications for eurypterid palaeoecology, diversity and evolution

2003 ◽  
Vol 94 (3) ◽  
pp. 235-242 ◽  
Author(s):  
Victor P. Tollerton
Keyword(s):  
New York ◽  
Shallow Water ◽  
New York State ◽  
Taxonomic Revision ◽  
York State ◽  
Fine Grained ◽  
Diversity Measures ◽  
Extinction Event ◽  
First Occurrence ◽  
Near Shore

ABSTRACTThe record of Ordovician Eurypterida from New York State, USA, is shown to be largely false. Twenty-nine species in 17 genera are here recognised as pseudofossils, reducing by more than 75% the total number of named Ordovician eurypterid taxa. Consequently, 10 families now have their first occurrence either later in the Ordovician or in the Early Silurian. The implications for eurypterid palaeoecology, diversity and evolution are not as straightforward as would be expected from such a drastic taxonomic revision. All Ordovician eurypterids are now known to occur in shallow-water, near-shore shales or fine-grained carbonates. Diversity measures indicate that the end-Ordovician extinction event appears to have had less effect on eurypterids than previously known, and their turnover is level in the Ordovician.

Concentration and flux of solutes from snow and forest floor during snowmelt in the West-Central Adirondack region of New York

1987 ◽  
Vol 3 (1-3) ◽  
pp. 209-224 ◽  
Author(s):  
C. M. Rascher ◽  
C. T. Driscoll ◽  
N. E. Peters
Keyword(s):  
New York ◽  
Forest Floor ◽  
The West ◽  
West Central
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