...in recent years and no ore shipped since 1896. This deposit is described by EC Harder* as follows: "The country rock is jasper, thin layered and separated...thickness from a fraction of an inch to several feet thick. The same layer varies in thickness, pinching out locally in many places. Most of the shale seams...

...first opened in 1885 and some small shipments made. This deposit is described by EC Harder as follows: "The country rock is jasper, thin layered and separated...places. Most of the shale seams are thin. Both shale and jasper are greenish gray, except where stained red or black V1v iron or manganese. "The ore occurs...

...frequently in kidneys or wormlike aggregates. It is generally soft and is mixed with considerable clay. (6) The main mass of ore occurring along the fissure is...layer varies in thickness, pinching out locally In manyplaces. Mostof the shale seams are thin. Both shale and jasper are greenish gray except where stained...

...jasper wall is very hard, with either amorphous or finely crystalline structure. The forrnergenerally has a steel-gray luster, and the latter is bluish....places. Most of the shale seams are thin. Both shale and jasper are greenish gray except where stained red or black by iron or manganese. The dip of the layers...

...dirtygray sandstone containing thin calcareous beds and numerous lenses and layers of sandy shale ranging in thickness from a fraction of an inch to several feet. The distribution of the oil in the sand is probably dependent to a considerable degree on differences in...

...cases are rounded, giving the granulitic textures. In most cases they are arranged in bands which vary in thickness from a fraction of an inch to several feet. The rocks are commonly greenish black in color. Mode of Occurrence. — Most of the inclusions occur well...

...dirty-gray sandstone containing thin calcareous beds and numerous lenses and layers of sandy shale ranging in thickness from a fraction of an inch to several feet. The distribution of the oil in the sand is dependent on System Series Group Formation Character Thickness...

...altered to quartz-sericite schists, sericite schists, and graphitic schiste. The individual beds vary in thickness from a fraction of an inch to several feet. The quartz-sericite schists contain much quartz and sericite. Some have much biotite, some contain actinolite,...

...Fully half of the volume of rock is of thin injection sills of quartz- feldspar pegmatite that range in thickness from a fraction of an inch to several feet. The abundant injection of this zone is governed by two factors: I The sedimentary rock of this area was...

...constituting the slates, and by a slight difference in size of grain. These bands within the slates vary in thickness from a fraction of an inch to several feet. The bands of slate themselves, where interlaminated with grits and near the conglomerates, also vary in...