Showing posts with label research. Show all posts
Showing posts with label research. Show all posts

Wednesday, 5 October 2011

The next adventure has been revealed

As of 1 November I shall be employed again. True to my pattern thus far it will be for something I have never done before. My Master's research was a structural geology project focusing on the deformation style and timing of a specific fault in the Brooks Range, Alaska. My PhD research focused on the metamorphic history of all of Tasmania, my first post-doc position introduced me to experimental petrology as a tool for understanding subduction zone processes. Now I am about to start a research position focusing on 3D (and 4D) geochemical modelling of VHMS ore deposit systems in northern Sweden.

This will be a project with a steep learning curve for me since the last two projects focused on metapelitic rocks and now I will need to learn the intimate details of volcanic rocks and what happens when they not only contain ore deposits but also have been subjected to greenschist facies metamorphism.

Needless to say, I left the meeting where I accepted the job offer with a bit of light reading in hand—one textbook: Introduction to Ore-Forming Processes and one PhD thesis: Volcanic Stratigraphy and Hydrothermal Alteration of the Petiknäs South Zn-Pb-Cu-Au-Ag Volcanic-hosted Massive Sulfide Deposit, Sweden. This thesis contains cross sections of one of the important deposits in this area—my project will be to take this sort of research to the next step—modelling the actual volumes involved in 3D.

I will look forward to reading these during the next couple of weeks before the job actually starts—in theory I will be in a much better place to hit the ground running by doing so. If any of you have suggestions for things in the literature that I really should read if I hope to do well with this research feel free to share them here. It is time to start reading 1000 words a day from the geologic literature again. I stopped at the end of last year when my job ended and haven't picked it back up during my extended vacation between jobs. I have enjoyed the holiday, but it is time to refocus on science and learning.

Saturday, 18 December 2010

The most difficult stage of the writing process: what to include?

here are many things I love about being a scientist—doing research, whether it be in the field or the laboratory is just plain fun. Processing the data after gathering it can also be much fun as it is transformed into useful information and patterns start to emerge. However, my least favourite part of any research project is deciding what parts to share with the world in the form of a published paper. Why? Because I suffer from two conflicting tendencies—on the one hand I suffer from Too Much Information Syndrome, where I want to share with the reader *everything* I tried in the course of research and painstaking details about the manner in which some of the avenues of investigation failed to work and exactly why others were more effective. But on the other hand, I also suffer from the tendency to want to cut things too short—to neglect to mention the background information that I understand which is crucial for really grasping what it is that I have done and why it is significant. Somewhere between these two extremes lies the happy middle ground that leads to a published paper. Once I've managed to get past that somewhat daunting decision of what information to include, and what to leave out, the rest of the paper writing becomes a joy once again. It can be fun to craft the perfect sentence which conveys, in the most eloquent manner, the complex concepts that underpin the investigation. I enjoy the editing and revision portion of the process nearly as much as the data-gathering. Therefore, wish me luck as I go through all of the data generated (and still being generated) in my (nearly) 1.5 years as a post-doc (final experiment to be analyzed for the first time on Monday and Tuesday!) and try to determine what parts to share with the world, so that I may move on to the more fun parts of transforming the first draft of the prose into eloquence.

Friday, 19 November 2010

Final experiment of the project

What is probably my final experiment (for this project) is running. We started it yesterday morning. My current contract runs through December. At 2 to 3 weeks per experiment, this one is probably it. This fact left me torn as to what conditions to choose for the run.

I've got a couple of previous experiments which turned out to be very difficult to analyze due to improper sealing of the capsules. Therefore I'd love to re-run them, with properly sealed capsules, in hopes of better grain sizes, so that I can get good analyses of the phases present.

We've got some data from experiments run by a predecessor of mine which use a slightly different bulk composition. In theory the difference between the two bulk compositions shouldn't really matter—most of the difference is in the amount of SiO2, which is still in excess in the bulk composition I use (as we can tell from the presence of quartz). However, when I calculated what phases should be present for each bulk composition using Perple_X, it said that at the P/T of those old runs the new bulk should have different phases. Therefore I'd like to re-run one of those to see if there is, in fact, any difference in the results with the slightly different composition.

And, finally, both my boss and I wanted to do another run in a P/T space that is expected to have both garnet and talc, since this project is about defining the stability field for talc. That makes three different experiments I want to run, and sufficient time available to do one of them. Decisions, decisions!

We eventually decided to go with a totally new run—while the data from the "bad" runs isn't complete, we do know that there isn't talc present at those conditions, which is the single most important question. Therefore there is more value in obtaining new data than clarifying old data in this case.

All in all, this project has convinced me that 1.5 years is simply not enough time for such a project. However, I am pretty certain that if it had been a 3 year contract that was now approaching its end I'd still be sitting here thinking about the other experiments I would have liked to have run, had there been time/budget to do so. Ah, the life of a research scientist—so many questions to be asked, so many things to do to try to answer them, but no matter which ones we choose, it never, really, feels like we've got time enough to obtain all of the data we would like to have…

Tuesday, 27 July 2010

What could be more fun than extending the boundaries of the sum of human knowledge?

Not too long back I got into a conversation with a friend of mine, who was complaining about his job and how little he enjoys it. It is always difficult for me to be properly sympathetic in such conversations. Having learned as a child that “work” or “a job” meant "something unpleasant that people had to do but didn’t want to do", I have done my best to avoid ever having to do such a thing myself. Indeed, this was one of the largest motivating factors in my decision to be a life-long scholar—to stay happily in the academic world, learning interesting things.

When my academic career progressed to the point of undertaking a PhD project I was totally excited about it—I was about to learn something new, something that no one else ever knew before. This is heady stuff. Sure, there can be a fair bit of tedium in research, but that is more than offset by the ability to set one’s own hours and choose for oneself the topic and direction of the research. Having finished the PhD and moved on to a post-doc position doing experimental petrology I find that I am still expanding the bounds of human knowledge. The experiments I’m doing are ones that no one has done before—each run I do provides new information that needs to be analyzed—looked at, compared with the previous information, and understood.

I am aware that there are people out there who have the misfortune to spend their days doing things that don’t interest them, and I am grateful that I am not one of them—that I have the joy that comes from learning new things. Not just new to me, but new to everyone. What could be more fun than that?