SILT—A Journal of Personal ResearchUpdated August 9/2022
SILT 1, December 2011 This article was originally published in SHALE 18, pp.36-7, April 2008, but has since been substantially revised.
SILT 2, March 2012 Investigations into the Kwakwaka'wakw myth that they forecast the strength of the eulachon run.
SILT 3, March 2012 Dark-grey, but only under the weathering rind.
SILT 4, July 2012 An amateur geologist's view.
SILT 5, December 2012 Does salt weathering account for the shape of both of them?
SILT 6, February 2013 A lament.
SILT 7, December 2013 Vancouver Island University undergraduate paper.
SILT 8-1, January 2014 A brief introduction to a series of articles dealing with the geology of Gabriola Island at the end of the last ice age.
SILT 8-2, January 2014 An analysis of glacial striae in the bedrock of the island shows glaciation from the NW and NE. Some striae may have been incorporated into petroglyphs. Also discussed are Gabriola's Nye channels - grooves in the sandstone probably carved by subglacial meltwater streams.
SILT 8-3, January 2014 Sandstone weathers relatively rapidly, but you can still find evidence on surfaces of the movement of glaciers over Gabriola. Roches moutonnées (definition included) abound; easy to find once you recognize this glacial landform.
SILT 8-4, January 2014 Large boulders at the foot of cliffs on Gabriola are usually attributed to earthquakes. This article suggests that they may instead be the result of plucking by glaciers.
SILT 8-5, January 2014 Evidence of glaciation of Gabriola Island from down the Georgian Depression (NW) and across from Howe Sound (NE) is easy to find, but there is also
evidence of an earlier glaciation from the Kennedy Lakes area on Vancouver Island. There is a supplement on glacial striae on the Harewood Plain here.
SILT 8-6, January 2014 Several types of drift and till exist on Gabriola, including erratic boulders.
SILT 8-7, January 2014 A simplified account of Gabriola's soils with the focus on their C horizons and glacial origins.
SILT 8-8, January 2014 An attempt at determining where non-sedimentary pebbles and cobbles on the beach came from by identifying and counting them and statistically analyzing the results.
SILT 8-9, January 2014 A fairly successful attempt to determine where exactly on Vancouver Island and on the mainland particular types of stone in Gabriola's glacial debris came from.
SILT 8-10, January 2014 A computer study of the deglaciation of Gabriola and its timing relative to the Younger Dryas.
SILT 8-11, January 2014 Found on Gabriola Island.
SILT 8-12, January 2014 Terms used in this series of articles.
SILT 8-13, January 2014 A description of some of the more interesting ice-age sites on Gabriola. Some of the fossils have been radiocarbon dated and there are notes on the difficulties of interpreting radiocarbon dates of NE Pacific marine fossils from the late-Pleistocene. Addenda 2017 and 2021.
SILT 8-14, January 2014 Are there Quadra Sand deposits on Gabriola? Probably yes, and these just might be a source of early ice-age fossils. Addendum 2017.
SILT 9, June 2014 Did Captain Vancouver report observations that were never made in order to avoid being embarassed by the misplacement of the original data?
SILT 10, June 2014 A visit to the site of Captain Cook’s landing on the west coast of Vancouver Island.
The discovery of the location of Astronomer’s Rock, and of several of the viewpoints of artists John Webber and William Ellis in April 1778.
SILT 11, December 2014 The name "Gabriola" was originally "Gabiola" or "Gaviola" and is the Basque name of a medieval iron works in the Kilimon valley near Mendaro in the Deba valley in Spain.
The site of the ferrería, which was the origin of the family name "Gabiola", still exists as shown in these photographs.
SILT 12, January 2015 The genealogy of the Gabiola family whose original ancestral home was in Mendaro in the Deba valley in the Spanish Basque country.
Post-publication additional notes. SILT 13, March 2015 Another one of six Gabriola petroglyph sites that show intriguing geographical orientations (N,S,E,W) and relationships with Eocene-age fractures in the sandstone bedrock.
SILT 14, April 2015 Descriptions of the cross-sectional area-velocity method frequently call for large numbers of depth measurements to be made to determine the area. In this article, it is shown that by using mathematical interpolation, very few depth measurements are actually necessary when the stream profile has been determined by erosion and deposition. Only when the cross-sectional profile is fixed by un-eroded bedrock may many sampling points be necessary.
SILT 15, July 2015 Honeycombing sandstone produces intriguing patterns of Thiessen polygons, but so do some species of tabulate corals. This article explores the link.
SILT 16, June 2016 The skills of the sextant makers and of the lunar-distance observers were not matched by the accuracy of the tables in the almanacs available at the time.
SILT 17, November 2016 SILT 18, December 2016 A companion article to Simon Fraser's latitudes - where was the Chief's village? An analysis of Fraser's journal entries for July 2, 1808 when he visited the lower Fraser River down as far as Musqueam.
SILT 19, January 2017 Captain Cook and William Bayly's observations of tides, currents, the effects of freshwater runoff, and weather off the west coast of Vancouver Island.
SILT 20, March 2017 Fractured sandstone has a different hydrogeology from that often described in textbooks. Concepts such as water table, aquifer, cone of influence, and catchment area don't always apply in the conventional manner.
SILT 21, August 2017 Inoceramids, ammonites, brachiopods, and a few unidentified bivalves.
SILT 22, August 2022 Statistical analysis.
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