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• 1. [Article] A preliminary investigation of the lithological characteristics of the Troutdale Formation in portions of the Camas, Sandy, Washougal, and Bridal Veil quadrangles

  The study area encompasses a region of about 80 square kilometers, centered about Corbett, Oregon. Sieve analyses suggest that the Troutdale Formation is composed of a conglomerate, a coarse-grained sandstone, ...

  Citation × Citation Citation Abstract Copy Title: A preliminary investigation of the lithological characteristics of the Troutdale Formation in portions of the Camas, Sandy, Washougal, and Bridal Veil quadrangles Author: Cole, David Lee Year: 1982 The study area encompasses a region of about 80 square kilometers, centered about Corbett, Oregon. Sieve analyses suggest that the Troutdale Formation is composed of a conglomerate, a coarse-grained sandstone, and a siltstone lithofacies. Measured sections data show that 56 to 60 percent of the Troutdale Formation's exposures are composed of the conglomerate lithofacies. The coarsegrained sandstone lithofacies makes up 34 to 38 percent, while the siltstone lithofacies makes up only 4 to 8 percent. Pebble count data show that the representation of basalt varies from 69 to 100 percent, with an average of 85 percent, while quartzite varies from 0 to 25 percent, with an average of 9 percent. Geochemical data show that at least one formal member and two informal members of the Columbia River Basalt Group (Frenchman Springs, Grande Ronde High Mg, and Grande Ronde Low Mg) compose part of the detritus. The geochemical data also show that rocks of the Boring Lavas or similar lavas are intercalated with the Troutdale Formation, high in the section. Grain mount petrographic data show that volcanic rock fragments are the dominant component in the coarse sand fraction of the Troutdale Formation. Many of the volcanic rock fragments contain brown glass with an index of refraction of 1.583 +/- 0.001, which indicates a mafic composition {silica content of 50 +/- 1 percent). The representation of volcanic rock fragments varies from 29 to 98 percent, with an average of 75 percent. Sedimentary rock fragments, such as chert, vary from 0 to 17 percent, with an average of 5 percent. Biotite ranges from 0 to 12 percent, with an average of 2 percent. Two-thirds of the samples which contain sedimentary rock fragments also contain biotite. Orthopyroxene varies from 0 to 18 percent, with an average of 5 percent. 2 The samples with the three greatest amounts of orthopyroxene do not contain sedimentary rock fragments or biotite. Title: A preliminary investigation of the lithological characteristics of the Troutdale Formation in portions of the Camas, Sandy, Washougal, and Bridal Veil quadrangles Author: Cole, David Lee Year: 1982 The study area encompasses a region of about 80 square kilometers, centered about Corbett, Oregon. Sieve analyses suggest that the Troutdale Formation is composed of a conglomerate, a coarse-grained sandstone, and a siltstone lithofacies. Measured sections data show that 56 to 60 percent of the Troutdale Formation's exposures are composed of the conglomerate lithofacies. The coarsegrained sandstone lithofacies makes up 34 to 38 percent, while the siltstone lithofacies makes up only 4 to 8 percent. Pebble count data show that the representation of basalt varies from 69 to 100 percent, with an average of 85 percent, while quartzite varies from 0 to 25 percent, with an average of 9 percent. Geochemical data show that at least one formal member and two informal members of the Columbia River Basalt Group (Frenchman Springs, Grande Ronde High Mg, and Grande Ronde Low Mg) compose part of the detritus. The geochemical data also show that rocks of the Boring Lavas or similar lavas are intercalated with the Troutdale Formation, high in the section. Grain mount petrographic data show that volcanic rock fragments are the dominant component in the coarse sand fraction of the Troutdale Formation. Many of the volcanic rock fragments contain brown glass with an index of refraction of 1.583 +/- 0.001, which indicates a mafic composition {silica content of 50 +/- 1 percent). The representation of volcanic rock fragments varies from 29 to 98 percent, with an average of 75 percent. Sedimentary rock fragments, such as chert, vary from 0 to 17 percent, with an average of 5 percent. Biotite ranges from 0 to 12 percent, with an average of 2 percent. Two-thirds of the samples which contain sedimentary rock fragments also contain biotite. Orthopyroxene varies from 0 to 18 percent, with an average of 5 percent. 2 The samples with the three greatest amounts of orthopyroxene do not contain sedimentary rock fragments or biotite. Close

• 2. [Article] The Siletz Indian Reservation, 1855-1900

  The aim of my study was to try to bring forth the basic aspects and characteristics of the Siletz Reservation as it was in the nineteenth century. Concentration was placed on the life activities and concerns ...

  Citation × Citation Citation Abstract Copy Title: The Siletz Indian Reservation, 1855-1900 Author: Kent, William Eugene Year: 1973 The aim of my study was to try to bring forth the basic aspects and characteristics of the Siletz Reservation as it was in the nineteenth century. Concentration was placed on the life activities and concerns of a typical resident, while at the same time extremes in behavior and actions were also noted. Thus an entire spectrum of human life was recreated. Government policies and events and changes of the time were noted as to how they affected the life at the reservation. I did not include all of the information available to me .and all information is not known by any single authority or source of information. I feel that I have presented a broad and, satisfactory picture of my topic. It is hoped that someday more information and insight will be presented that will add depth to my initial study. Also out of necessity I could only briefly cover many topics which could easily be worthwhile covering in more detail. Thus there is more ground to cover. Despite its importance, there is correspondingly not much written about the Siletz Reservation. This is largely probably due to the fact that the reservation fades fast from a center of attention. The population fell below five hundred by the turn of the century, thus making the place far from a population center. A second factor was that the people became a new people in a new world and so, instead of continuing to be a home to change Indians, it was merely a home for people who lived like other Americans but were Indian by heart and appearance. Aside from a few studies and sources of information, there are two main sources of information. The first is the annual reports sent to the Secretary of Interior. These can be found in any major library. The second source is the manuscripts. These are the records and correspondence of the agency. The Siletz Manuscripts are in six boxes at the Oregon Historical Society Library in Portland. The material is unorganized and much of it is damaged. There is also material not related to Siletz. Some of Joel Palmer's Indian Treaties are there as well as quite a lot of records of the Grand Ronde Reservation. Unfortunately, it is largely correspondence to the Agency rather than that sent out. The government archives may have some of the correspondence. As every student and author knows, writing poses many problems. There are any number of ways to put together a study of this kind. I divided mine into three basic parts. The first section is a year by year analysis. The second is topic by topic, and finally the third is again yearly. This helped me keep on the general topic of the reservation itself while still being able to diverge and enlarge on important issues. It was a challenging and rewarding task which I hope will be enjoyed by others and will add to their knowledge and understanding of the Siletz Indians and their life on the Reservation. Title: The Siletz Indian Reservation, 1855-1900 Author: Kent, William Eugene Year: 1973 The aim of my study was to try to bring forth the basic aspects and characteristics of the Siletz Reservation as it was in the nineteenth century. Concentration was placed on the life activities and concerns of a typical resident, while at the same time extremes in behavior and actions were also noted. Thus an entire spectrum of human life was recreated. Government policies and events and changes of the time were noted as to how they affected the life at the reservation. I did not include all of the information available to me .and all information is not known by any single authority or source of information. I feel that I have presented a broad and, satisfactory picture of my topic. It is hoped that someday more information and insight will be presented that will add depth to my initial study. Also out of necessity I could only briefly cover many topics which could easily be worthwhile covering in more detail. Thus there is more ground to cover. Despite its importance, there is correspondingly not much written about the Siletz Reservation. This is largely probably due to the fact that the reservation fades fast from a center of attention. The population fell below five hundred by the turn of the century, thus making the place far from a population center. A second factor was that the people became a new people in a new world and so, instead of continuing to be a home to change Indians, it was merely a home for people who lived like other Americans but were Indian by heart and appearance. Aside from a few studies and sources of information, there are two main sources of information. The first is the annual reports sent to the Secretary of Interior. These can be found in any major library. The second source is the manuscripts. These are the records and correspondence of the agency. The Siletz Manuscripts are in six boxes at the Oregon Historical Society Library in Portland. The material is unorganized and much of it is damaged. There is also material not related to Siletz. Some of Joel Palmer's Indian Treaties are there as well as quite a lot of records of the Grand Ronde Reservation. Unfortunately, it is largely correspondence to the Agency rather than that sent out. The government archives may have some of the correspondence. As every student and author knows, writing poses many problems. There are any number of ways to put together a study of this kind. I divided mine into three basic parts. The first section is a year by year analysis. The second is topic by topic, and finally the third is again yearly. This helped me keep on the general topic of the reservation itself while still being able to diverge and enlarge on important issues. It was a challenging and rewarding task which I hope will be enjoyed by others and will add to their knowledge and understanding of the Siletz Indians and their life on the Reservation. Close