Paper plant effluent revisited-southern Lake Champlain, Vermont and New York

1993 ◽  
Vol 21 (1-2) ◽  
pp. 77-83 ◽  
Author(s):  
R. S. Haupt ◽  
D. W. Folger
Keyword(s):  
New York ◽  
Lake Champlain

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.

British Forts in Northern New York State

2018 ◽  
Author(s):  
David R. Starbuck
Keyword(s):  
New York ◽  
American Revolution ◽  
New York State ◽  
Hudson River ◽  
Lake Champlain ◽  
York State ◽  
American Landscape ◽  
Eastern Edge ◽  
Lake George

Numerous British fortifications were constructed in the 1750s along Lake Champlain, Lake George, and the Hudson River, all on the eastern edge of the colony of New York. Many of these positions were reoccupied twenty years later during the American Revolution. The author has conducted excavations for nearly thirty years at several of these forts and encampments, seeking to understand the strategies, provisioning, foodways, and building techniques employed by British Regulars and Provincial soldiers as they fought on the American landscape. These sites include Fort William Henry, Fort Edward, Rogers Island, and Fort George, each of which helped to open up the interior of the colony of New York to further settlement.

The First Invasion

2021 ◽  
pp. 25-50
Author(s):  
Kevin J. Weddle
Keyword(s):  
New York ◽  
Hudson River ◽  
Arms Race ◽  
Lake Champlain ◽  
Lake George

This chapter describes the first British invasion of New York via the historic Lake Champlain, Lake George, and Hudson River route in the autumn of 1776. It starts with General Sir Guy Carleton’s successful defense of Canada and repulse of the American attempt to seize Quebec. The increasingly fraught relationship between Carleton and Lord George Germain is also addressed as is the naval arms race between the Americans and the British. This race delayed Carleton’s offensive south on Lake Champlain more than the celebrated Battle of Valcour Island, and he was forced to abandon the offensive after he reached Crown Point, much to the dismay of his second-in-command, Lieutenant General John Burgoyne. This failed first invasion planted the seeds for a new plan created in part by Burgoyne.

Water quality response to riparian restoration in an agricultural watershed in Vermont, USA

2001 ◽  
Vol 43 (5) ◽  
pp. 175-182 ◽  
Author(s):  
D. W. Meals
Keyword(s):  
New York ◽  
Management Practices ◽  
Monitoring Program ◽  
Cost Effective ◽  
Agricultural Watershed ◽  
Riparian Restoration ◽  
Lake Champlain ◽  
Grab Sampling ◽  
National Monitoring ◽  
Treatment Techniques

Achievement of management goals for Lake Champlain (Vermont/New York, USA and Quebec, Canada) will require reduction of agricultural phosphorus loads, the dominant nonpoint source in the Basin. Cost-effective phosphorus reduction strategies need reliable treatment techniques beyond basic cropland and waste management practices. The Lake Champlain Basin Agricultural Watersheds National Monitoring Program (NMP) Project evaluates the effectiveness of livestock exclusion, streambank protection, and riparian restoration practices in reducing concentrations and loads of nutrients, sediment, and bacteria in surface waters. Treatment and control watersheds in northwestern Vermont have been monitored since 1994 according to a paired-watershed design. Monitoring consists of continuous stream discharge recording, flow-proportional sampling for total P, total Kjeldahl N, and total suspended solids, grab sampling for indicator bacterial, and land use/agricultural monitoring. Strong statistical calibration between the control and treatment watersheds has been achieved. Installation of riparian fencing, protected stream crossings, and streambank bioengineering was completed in 1997. Early post-treatment data suggest significant reduction in P concentrations and loads and in bacteria counts in the treated watershed. Monitoring is scheduled to continue through 2000.

Hog's Back Formation: a new (Middle Ordovician) stratigraphic unit, Ottawa Embayment, eastern Ontario, Canada

1997 ◽  
Vol 34 (5) ◽  
pp. 588-597 ◽  
Author(s):  
Osman Salad Hersi ◽  
George R. Dix
Keyword(s):  
New York ◽  
Carbonate Facies ◽  
Lake Champlain ◽  
Middle Ordovician ◽  
Stratigraphic Unit ◽  
Type Section ◽  
Eastern Ontario ◽  
Dark Green

The Hog's Back Formation, exposed in Ottawa, Ontario, is a new stratigraphic unit that disconformably overlies the Rockcliffe Formation and underlies, with apparent conformity, the Pamelia Formation of the Ottawa Group. The Hog's Back Formation is 14.3 m thick at its type section (Prince of Wales Falls, Ottawa) and thickens eastward to 27 m in Russell County, about 40 km southeast of Ottawa. It consists of lower, dark green shales with thin lime-mudstone and sandstone interbeds, and upper thin to thick beds of fine crystalline greenish grey sandy and calcareous dolostones with thin to medium (10–30 cm) pinkish grey, bioclastic packstone and grainstone interbeds. The latter thicken eastward and correlate with the "St. Martin calcarenites" of the Beaconsfield Member, Laval Formation, in the Montréal area. Together, these beds correlate with the Valcour Formation, Chazy Group, in the Lake Champlain area of New York. Conodonts and macrofossils indicate a Chazyan (Llandeilian) age for the Hog's Back Formation. The lower sandstone–shale–carbonate assemblage of the formation indicates sedimentation in peritidal environments, and documents initial regional flooding of nearshore sandy facies of the Rockcliffe Formation. The overlying carbonate facies represent sabkha environments punctuated by storm deposition. The gross shallowing-upward succession of the formation was terminated by renewed flooding associated with another regional transgressive event heralding deposition of the Ottawa Group.

Sign in / Sign up

Export Citation Format

Share Document