Cancer Selfies

The cancer eon

This is one of my absolute favourite photos from my cancer eon.

Photo from 2022-09-26: Things are already going better after one cycle

From the comments

James Petrosky:"But James, shouldn't that be era?" Look, it's not anyone's fault that we don't teach the subdivisions of geological time in school (also, I don't think we should, time would be much better spent on astronomy or evolution).
An eon is the largest division of time, the precambrian is takes up three of four eons. In analogy, moving out after high school might be the sort of thing worthy of changing an eon. For me, cancer is an eon.
An era is a subdivision of an eon. The mezosoic is an era. All dinosaurs evolved, lived and died (except birds) in the mezosoic. I have chemotherapy, surgery and post surgery eras.
To torture the metaphor, eras are made of periods. Jurassic, ordovician, paleogene. I did three courses of chemotherapy (broken up by CT scans), each course is a period.
Periods are broken into epochs. If you hear a geologist say "upper triassic", that's an epoch. A 14 day cycle of chemotherapy would be an epoch.
Finally, we have ages. The smallest geological unit. The metaphor is stretched to uselessness, but the comparison is a day.

VLog: September 13th, 2023

I tried and failed to locate an oxbow lake.

Precambrian-Ordovician Nonconformity outside Burleigh Falls, Ontario

Across Ontario there are several outcrops where you can see the precambrian-paleozoic nonconformity. One of these is approximately 3km West of Burleigh Falls, Ontario, on Peterborough Road 36.

A nonconformity is a missing part of the geological column where sedimentary rock was deposited on a crystalline igneous or metamorphic rocks. Here our igneous rocks are from the Grenville province of the Canadian Shield, and our middle Ordovician rocks are from the Gull River and Shadow Lake formations (part of the Simcoe group). The point of contact between these rocks represents approximately 550 million years of missing geological history, the Ordovician rocks are only 450 million years old.

I said I was going to give you coordinates for the site. After seeing it, and comparing it to what Google StreetView has from a few years ago, I'm not going to do that. Tourist erosion is a real problem in hobby geology. It shouldn't take long for anyone interested to locate the outcrop with this information. If you find yourself there, please respect those who will come after you, and please don't be a nuisance to the people who live nearby.