Laurentian Magnetic Iron Ore Deposits. 137 



this range to the Labradorite series which forms the lake range in the township 

 of Westport (north of Moriah), and probably extends to the line of Mullen 

 brook, which cuts through a marked depression just north of Bald Peak moun- 

 tain. This depression extends around the northern boundary of this mountain 

 to the neighborhood of Barton pond. 



There is a large area extending from the vicinity of Barton pond southward 

 to Moriah Corners and south of this point, which is covered principally with 

 glacial debris, varying from fifty to three hundred feet in depth. 



Bald Peak mountain, together with the range of iron-ore-bearing rocks at and 

 about Mineville, seem to have been brought up by faults. 



The northern portion of the township of Moriah is occupied by the Lower 

 Laurentian rocks, containing large deposits at various places of magnetite iron 

 ore. The central portion of the township along the line of Mill brook is 

 occupied by the limestones of the Laurentian, deposited unconformably on the 

 Lower Laurentian, and the entire southern portion is occupied by the garnet- 

 iferous micaceous gneisses and quartzites, with numerous beds of sulphury and 

 lean iron ores. 



ELIZABETHTOWN. 



Lower Laurentian. 



The Lower Laurentian rocks of this township probably extend across the 

 entire southern end, at least as far as the Boquet river, and thence to the neighbor- 

 hood of New Russia and across in an easterly direction to the township of West- 

 port. How far to the westward of the Boquet river this formation extends, I 

 am as yet unable to say. 



The region east and southeast of the Black river is undoubtedly a monoclinal 

 pitching to the westward. As yet I have no evidence of a synclinal structure. 

 There are no developments of iron ore beds through this region, though there are 

 beds of Magnetite in the neighborhood of Long pond, which may be in close 

 geological proximity to those of the Fisher Hill mines. 



The region between the Black and Bouquet rivers has been proven to be 

 synclinal ; along the Black river the rocks and ore beds pitch to the westward 

 and northwest, and along the right bank of the Boquet the rocks pitch to the 

 eastward. It is highly probable that the same lower rocks pitch to the west- 

 ward west of the Boquet river overlaid by the Labradorites, reappearing again 

 in an anticlinal fold along which the Ausable river flows through Keene. 



It is, therefore, probable that nearly all of the territory west of the Boquet 

 river in this township belongs to thje Labradorite series. That the portion of 

 the township lying north of an east and west line from the neighborhood of the 

 Kingdom Forges to the Boquet river belongs to this upper series, is beyond a 

 doubt. 



In lot 209 of the " Iron Ore Tract," situated southeast of the town of 

 Eiizabethtown, there has been developed a bed of Titaniferous iron ore, which 

 is characteristic of the Upper Laurentian or Labradorite series. The true line 

 of junction of the Labradorite series with the Lower Laurentian rocks is pro- 

 bably not far south of this point, and the outlet of Little pond flowing westward 

 to the Boquet river may be the true line of junction. The general structure 

 here is an eroded synclinal with northeast and southwest axis overlapped by the 

 Labradorite series pitching westward. 



WESTPORT. 



Lower Laurentian. 

 The Magnetite range of the township of Moriah and Eiizabethtown continues 

 across the township lines and extends into the township of Westport, occupying 



