Caleb Renner
Caleb Renner
B.S. Geology Major
Idaho State University
email: renncale@isu.edu
Project description:
Recent HiRISE images from Mars have shown 5-30-meter coils in channelized lava flows on Athabasca Valles. While some coil structures have been observed on Earth, terrestrial coils have a different morphology that suggests they are formed by a different mechanism. It is infered that continued inflation of the lava body and surges in the eruption rate caused the cooled surface of the lava flow to rupture and spread, with shear between plates of cooled lava crust and underlying molten lava, providing the mechanism to form martian coils. However, this emplacement mechanism for coils has not been directly observed on Earth or elsewhere. By understanding martian coil formation, we can understand lava properties and historical conditions during eruptions on Mars and, by extension, better understand early Earth.
I will test the emplacement of lava coils via shearing top plates using wax analog experiments. I hypothesize that the rupture geometry of the shearing top plate determines whether coils form in the channelized wax.
Overall Goals:
- Gain research experience that will further undergraduate learning experience
- Improve critical thinking and analysis
- Improve scientific writing and communication
- Submit an honors thesis and manuscript for publication
Mid-goals:
- Continue performing wax tests to collect a database
- Learn GPlates software to prepare for rift models
- Get a sense of lava fluid dynamics and rifting of lava lakes
Tasks for 3/17:
Read Icarus submission guidelines
- start revisions
B/W versions of figures -- how much can we get away with?
{SKN: keep pinging NASA contacts}
Send updated draft to SKN
{SKN: Read/revise draft}
Tasks for 3/10:
Poster: steal space from Conclusions for Discussion, add text about KHI and VKS
Convert LIP outline to text
Start on digitizing the new figures, try in Illustrator in DML (contact SKN for help as needed)
Tasks for 3/3:
Revise poster draft
add LIPs to discussion in manuscript
start on alternative figures to ones that we've been borrowing
Tasks for 2/11 (email):
Slides: add more content on terrestrial vs martian coils
- aim for ~20 slides
Make poster draft (revise from old)
Make LPSC reservations; send copies of receipts to SKN
{SKN check other laptop/re-annotate comments}
Tasks for 2/4:
File travel authorization with Michele's help
Email committee about dates/times for defense (19, 21, 28 Feb); include Dawn
{SKN check other laptop/re-annotate comments}
Tasks for 12/2:
Continue revising
Send SKN LPSC abstract
{Read LPSC abstract}
Find numbers for variable lava speeds and densities that are reasonable for Ri bracket calculations
- talk to BC about Ri calculations in water
Tasks for 11/18:
{Completed LPSC draft; SKN will review in a later week -- don't forget!}
Clarifying thesis, adding more thoughts to draft
{Waiting on thesis feedback from SKN/DT}
Tasks for 10/14:
Save some GPlates with flow lines
Write short analysis using GPlates output justifying oblique over orthogonal motion
Experiments: do a few follow-up oblique and plate geometry tests, otherwise looking good
Look for eddy papers outside of volcanology (engineering journals?)
Start new writing
Tasks for 9/30:
Put together GPlates model to look at perpendicular motion instead of oblique
Keep going with experiments
Look for paper(s) on eddies, esp. relating eddy scale to velocity, viscosity, and channel width(?)
- relate to Discussion section?
Start writing draft
Check R&C paper for dataset download?
Tasks for 9/23:
<No meeting due to Seminar 9/16>
Continue oblique experiments
Review Harris, decide whether you trust the numbers given to characterize the different regimes
Put together GPlates model to look at perpendicular motion instead of oblique
Put in "bedrock" section in GPlates
Keep working on thesis outline
Tasks for 9/9:
Organize observations/conditions into a summary table
Continue oblique experiments
Start to work references to Ragnarsson and Karlstrom/Manga into text
- relate rift shapes from lava lakes vs. what we see
Read/summarize Harris (2005)
Ask Tyler about sharing lava coil photo (with citation)
<Summer: Field camp, lava coil work>
Tasks for 5/1: (email)
See what happens at 0.5 deg slope
Start to work references to Ragnarsson and Karlstrom/Manga into text
- relate rift shapes from lava lakes vs. what we see
Read/summarize Harris (2005)
Tasks for 4/24:
See what happens at 0.5 deg slope
For more on zig-zags:
Read/summarize Ragnarsson (1996)
Read/summarize Harris (2005)
Tasks for 4/17:
Read and Summarize lava lake rifting paper
Keep running wax experiments
-1 degree, jagged edge, perpendicular shear
-Add experiment with crust and flow, no shear
Tasks for 4/3:
See about accessing Adobe Illustrator in the DML; use to measure/annotate coils
- if too much of a pain to work in DML: consider using powerpoint
- email Donna/Carrie
Keep running experiments
- add no-board option (with and without slope)
Look for papers on lava lake rifting
Put together short summary report with figures
Tasks for 3/26:
Email receipt to SKN for pot
Keep playing with light
- think about backup ideas (paint/dye/etc.)
See about accessing Adobe Illustrator in the DML; use to measure/annotate coils
- if too much of a pain to work in DML: consider using powerpoint
Keep working with angled study and various board shapes
Go back through the equations from the lava dynamics paper. Do they make sense conceptually?
Tasks for 3/13:
check DI/IYR/whatever for cheap pot with lid
See if light source on side of wax setup improves photo visibility/shadows
- use powdered paint or food coloring?
Start compiling numbers, directions, sizes, etc., on coils in existing images; add to spreadsheet
Start working with different plate shapes at 1 deg.
Read/summarize/list questions for lava dynamics paper
Tasks for 2/20:
Continue on draft: Due 2/20
{File Cayuse tracking}
{Talk to Carrie/Ben cost match}
{Write prior projects}
Write NASA/ISGC alignment
Hypotheses section: list east hypothesis, provide rationale for hypothesis, how you will test (details, not full experimental design)
Tasks for 2/13:
Compile HiRISE observations into document, with annotated images
{SKN: follow up with Ben/Carrie about cost match}
{SKN: REVISE DRAFT}
continue experiments
Iterate with SKN on draft
Tasks for 2/6:
{SKN revise}
Laki DEM search
In HiRISE: put together map of coil locations -- are they consistent with Athabasca morphology/context?
- Other lava features: make list of features for comparison to Laki, and their contexts/measurements
Continue experiments
Ask Carrie to be on advising team
{SKN: follow up with Ben about cost match)
Tasks for 1/30:
2 paragraphs:
- 1st on work already completed and initial results
- 2nd on work to be done using the support from this grant (research plan)
Outline for Draft (single space, with figures):
- proposal description (5 pages): Problem statement; Introduce solution; Background (include your own GIS study); Hypotheses; For each Hypothesis, methods and potential outcomes including preliminary results
- Student involvement (1 paragraph)
- Project management/timeline (<1 page)
Tasks for 1/22:
Contact BC about being on UG Thesis committee
For undergraduate research grant: write paragraph explaining what work you'd want covered
Draft (single space, with figures):
- proposal description (5 pages): Problem statement; Introduce solution; Background (include your own GIS study); Hypotheses; For each Hypothesis, methods and potential outcomes including preliminary results
- Student involvement (1 paragraph)
- Project management/timeline (<1 page)
continue experiments
Tasks for 1/16:
experiments
Tasks for 1/9:
Subdivide entry in spreadsheet into the different categories as columns
Add 1 degree slope to study plan
Revise draft, and flag sections as appropriate
For undergraduate research grant: write paragraph explaining what work you'd want covered and first attempt at budget (email before next meeting)
Do a few more tests in the lab
Tasks for 12/11:
upload excel sheet to gsheet
- share to SKN
Try with-flow experiments using fan, barrier
Read/revise draft (combine problem statement/intro/methods/map results as appropriate, plus list of expected figures)
- this includes flagging sections with questions, identifying to-dos, etc.
For undergraduate research grant: write paragraph explaining what work you'd want covered and first attempt at budget
Tasks for 12/4:
make spreadsheet of experiments/outcomes, including tag number for video
Start either with-flow or different board edge geometry
Tasks for 11/16:
Experiments: oblique shear, flat plane
Transfer files to cloud (Drive/Box/etc.) and put a copy of the lab book notes in a spreadsheet in the master directory
Tasks for 11/6:
Look up deadlines for appropriate ISGC proposals
- due Feb 8, solicitation will be announced in December
Look up undergraduate funding from GSA
- undergrad research grants are not a good fit. They do have field camp scholarships, though. Due March?
Submit thesis advising contract
Do first experiments!!!
Tasks for 10/30:
key?
Start converting methods outline to narrative text
Build flume
Email Lori about gathering hotplate, beaker(s)
Outline Athabasca analysis section, include list of figures
Thesis advising form
Tasks for 10/23:
re-email/call public safety to check on key
Find saw (may need to purchase)
Once tools are in hand, start building
Embed figures and captions into narrative draft
Start converting methods outline to narrative text
Tasks for 10/16:
email/call public safety to check on key
Revise documents per suggestions
start building!
Write a paragraph about the other styles of lava coils (include citations)
Look for tools in Henry Thomas room (next to flume room, and Sed Lab)
Tasks for 10/9:
Start collecting materials
Turn problem statement worksheet into clean paragraphs of text, pt 5 is new paragraph explaining methods at high level
Write detailed outline of intended methods
Diagram: put into digital form with top-down and side views.
Write 1-2 paragraphs (not complete) converting methods and wax reference text into paragraphs for literature review
Tasks for 10/2:
Melting temperatures for styrofoam?
- need to make sure that we don't have a reaction b/t wax and styrofoam
Draft scaled diagram of design
- sizes and materials for each piece (turn into budget)
- include all of the extra items (hot plate, beaker, etc.) and if we can borrow or need to buy
- Process will be iterative (does design require more wax than we can melt quickly?)
Complete Problem statement worksheet
(start converting methods and wax reference text into paragraphs for thesis)
Tasks for 9/25:
Price out polyethylene glycol wax
~$50/500g
Paraffin wax for subaerial (cheap at craft store: $10/3 lbs?)
Work out a scaled diagram/blueprint of what you think we should pursue for the experimental design
Write/revise a 1 paragraph problem statement and 1 paragraph methods statement
Compile the key points from the various wax modeling papers that you've read into a cited summary (~1 page)
Tasks for ?:
Try to find reference about lava surface rifting at Laki
Measure channel widths
List of stuff that we'll need for the model, approximate prices
Tasks for 4/26:
Finish polygons
read/summarize paper
Make charts
Make some sketches of analog design ideas
Tasks for 4/12:
Read/summarize another of the papers
Keep mapping units as polygons (3: really rough plates, first infill plates, second infill plates)
Keep looking for patterns, bring in maps that represent views of good vs. useless pattern ideas
Tasks for 3/29:
Read/summarize another of the papers
Map units as polygons (3: really rough plates, first infill plates, second infill plates)
Keep looking for patterns, bring in maps that represent views of good vs. useless pattern ideas
Tasks for 3/15:
Enter notes on circular features
Play with symbology to try to find patterns
- for any that seem worth investigating, make output images
Map polygons of different plate groups
Try to find the 2 papers we listed as "to read"
- read/summarize 1
Tasks for 3/8:
Enter info on coils
Change RML name, keep mapping
Read/summarize Walker et al.
Tasks for 3/1:
Read/summarize flood basalt paper
- type up summary as abstract in your own words
- add notes underneath for questions, useful points, any leads on further reading, etc.
Finish marking coils
- add notes
Map RMLs
Tasks for 2/22:
Read and summarize Jaeger et al. (2008)
Make features in ArcPro for the coils; fill in attribute table
Tasks for 2/15:
{SKN: crash course in ArcPro with CB; send notes to CR}
Read/summarize Mars basalt paper
- type up summary as abstract in your own words
- add notes underneath for questions, useful points, any leads on further reading, etc.
Once you have notes, use them to make point layer in ArcPro for lava coils
- in notes, label direction of flow, diameter
Find a paper on Athabasca Valles (send copy to SKN)
Tasks for 2/8:
Read/summarize chapter on extraterrestrial volcanism
use googleScholar to find 1+ research paper on Mars basalt geochemistry
Use lab to make point layer in ArcPro for lava coils
- in notes, label direction of flow, diameter
Tasks 2/1:
Email Carrie (bottcarr) about student version of ArcMap/ArcPro
Open Hirise hp2 file in ArcMap/ArcPro
Look initially for patterns in size, distribution, possible blocks
Source of the lava? (Is there even data coverage to see?)
Read basalt chapter and write summary
Tasks for 11/01
Prepare research outline
Work on Barry-Goldwater Scholarship
Tasks for 9/1:
Figure out personal availability for projects
keep eye out for ISGC posting (check with physics prof)
For future: Re number -- how hard to hit turbulent flow?; scaled models?
Tasks for 6/28:
Practice NAGT presentation
Put description, photos on website
Rock at NAGT!
Tasks for 6/7:
Make GE map of coil locations, highlighting the preferred search locations (color?); send kml to SKN
First attempt at directions on dirt roads
(Monday, 6/5: coil hunting! Meet on campus at 9 am)
Review slides from last fall; trim to ~12 min
Put stuff on website
If time: Google Scholar search for papers on open channel lava flow. If you find a good one, email copy to SKN