Including Original "Paul H. Letters" Copyright © 1996-2017 Paul V. Heinrich - All rights reserved.



Monday, 23 September 2013

Cascade of Events' Caused Cambrian Explosion

Cascade of Events' Caused Cambrian Explosion

Cascade of Events' Caused Sudden Explosion of
Animal Life, Science Daily, September 19, 2013
http://www.sciencedaily.com/releases/2013/09/130919142202.htm

New Approach to Explaining Evolution's Big Bang
In-Depth, New York Times, September 19, 2013
http://www.nytimes.com/2013/09/20/science/new-approach-to-explaining-evolutions-big-bang.html

The paper is:
M. Paul Smith and David A. T. Harper. Causes of the
Cambrian Explosion. Science, 20 September 2013:
1355-1356 DOI: 10.1126/science.1239450
http://www.sciencemag.org/content/341/6152/1355

Related articles are:
Cambrian explosion was indeed marked by lightning-
fast evolution, NBCNews.com-by Tia Ghose
http://www.sciencemag.org/content/341/6152/1355

and an earlier paper about the Cambrian Explosion:
Peters, S. E., and R. R. Gaines. Formation of the ‘Great
Unconformity’ as a trigger for the Cambrian explosion.
Nature. vol. 484, no. 7394pp. 363-366.

Abstract is at:
http://www.nature.com/nature/journal/v484/n7394/full/nature10969.html

PDF file is at
http://211.144.68.84:9998/91keshi/Public/File/34/484-7394/pdf/nature10969.pdf

While Googling, I accidentally found the above paper is cited by:
Koschwanez, K. H., K. R Foster, and A. W Murray, 2013,
Improved use of a public good selects for the evolution of
undifferentiated multicellularity. eLife 2013;2:e00367.
http://labs.mcb.harvard.edu/murray/publications/Koschwanez_2013_23577233.pdf

Yours,

Paul H.

Thursday, 19 September 2013

Extraterrestrial Spinels

Extraterrestrial Spinels

Meteorite Minerals Hint at Earth Extinctions, Climate
Change by Jeremy Hsu, Astrobiology Magazine
http://www.astrobio.net/exclusive/5678/meteorite-minerals-hint-at-earth-extinctions-climate-change

Meteorite minerals offer clues to Earth extinctions,
climate change by Jeremy Hsu Space.com, NBC News
http://www.nbcnews.com/science/meteorite-minerals-offer-clues-earth-extinctions-climate-change-8C11167396

Yours,

Paul H.

Tuesday, 17 September 2013

Guidebook to Dinosaur Provincial Park, Alberta

Guidebook to Dinosaur Provincial Park, Alberta

Below is a guidebook to Dinosaur Provincial Park, Alberta.

Koster, E. H., 1983, Field Trip Guidebook - Sedimentology
of the Upper Cretaceous Judith River (Belly River)
Formation, Dinosaur Provincial Park, Open File Report
no. 1983-12. Alberta Research Council; Alberta Geological
Survey.

http://www.ags.gov.ab.ca/publications/abstracts/OFR_1983_12.html
http://www.ags.gov.ab.ca/publications/OFR/PDF/OFR_1983_12.PDF

Other publications about Alberta geology can be searched for at:
http://www.ags.gov.ab.ca/publications/

Dinosaur Provincial Park, Alberta
https://en.wikipedia.org/wiki/Dinosaur_Provincial_Park
http://albertaparks.ca/dinosaur.aspx

Yours,

Paul H.

Saturday, 14 September 2013

Guide to the Geology of Sudbury, Ontario, Impact Structure

Guide to the Geology of Sudbury, Ontario, Impact Structure

The below field trip guidebook should be of interest
to many of the people on the meteorite mailing list.

Rousell, D. H., and G. H. Brown, 2009, Guide to the
Geology of Sudbury, Ontario. Open File Report no. 6243,
Ontario Geological Survey, Toronto, Ontario. 200 pp.
and geological map.

61 MB PDF file at
http://www.geologyontario.mndm.gov.on.ca/mndmfiles/pub/data/imaging/ofr6243//OFR6243.pdf

Related publications are:

Pye, E. G., A. J. Naldrett, and P. E. Giblin, eds., The
Geology and ore deposits of the Sudbury Structure.
Special Volume 1, Ontario Geological Survey,
Toronto, Ontario. 603 pp with additional geological
and geophysical maps, charts, plates, and reprints.

113 MB PDF file at
http://www.geologyontario.mndmf.gov.on.ca/mndmfiles/pub/data/imaging/SV01/SV01.pdf

Rousell, D. H., 1998, Bedrock Geology of the Regional
Municipality of Sudbury. Map Series no P3187, Ontario
Geological Survey, Toronto, Ontario.

PDF file at
http://www.geologyontario.mndmf.gov.on.ca/mndmfiles/pub/data/imaging/P3187/P3187.pdf

More publications can be found using the below web pages.

Geology Ontario - Publications PDF Search
http://www.geologyontario.mndm.gov.on.ca/

Geology Ontario - Publications Search
http://www.geologyontario.mndm.gov.on.ca/

Yours,

Paul H.

Friday, 13 September 2013

Paper About Using Exterrestrial Impacts to Explain Mass Extinctions

Paper About Using Extraterrestrial Impacts to Explain Mass Extinctions

Below is a recent paper about the evaluation of extraterrestrial
impacts in mass extinctions, which I found both thoughtful and
an interesting read.

Racki, G., 2011, The Alvarez impact theory of mass extinction;
limits to its applicability and the “great expectations syndrome”
Acta Palaeontologica Polonica, vol. 57, no. 4, pp. 681–702.
http://www.app.pan.pl/article/item/app20110058.html
http://www.bioone.org/doi/abs/10.4202/app.2011.0058

PDF file at:
http://www.app.pan.pl/archive/published/app57/app20110058.pdf

Yours,

Paul H.

Sunday, 8 September 2013

Online Papers for Multiple Years of NPS "Conference on Fossil Resources"

Online Papers for Multiple Years of NPS "Conference on Fossil Resources"

Either PDF files or web pages for of the 1992, 1994, 2001,
2006, 2009, and 2011 "Conference on Fossil Resources"
can be downloaded from the "Partners in Paleontology:
Conference on Fossil Resources"web page at
http://fossilresources.org/ .

1992 Conference on Fossil Resources: Web page –
http://www.nature.nps.gov/geology/paleontology/pub/grd3_3/index.htm

1992 PDF file –
http://www.nature.nps.gov/geology/paleontology/pub/grd3_3/grd3pdf.pdf

1994 Conference on Fossil Resources: PDF file –
http://www.nature.nps.gov/geology/paleontology/pub/grd4/nsp_paleo_vol4.pdf

1998 Conference on Fossil Resources: Table of Contents –
http://vertpaleo.org/PDFS/27/271792eb-1c0e-4b57-80cf-391fee7854ad.pdf

2001 Conference on Fossil Resources: web page –
http://www.nature.nps.gov/geology/paleontology/pub/fossil_conference_6/toc.htm

2006 Conference on Fossil Resources: web page –
http://www.nature.nps.gov/geology/paleontology/publications.cfm

2006 PDF file –
http://www.nature.nps.gov/geology/paleontology/pub/8CFR_2009_Proceeding_01.pdf

2009 Conference on Fossil Resources: PDF file –
http://www.nature.nps.gov/geology/paleontology/pub/8CFR_2009_Proceeding_01.pdf
and http://www.academia.edu/226013/2009_Proceedings_of_the_Eighth_Conference_on_Fossil_Resources

2011 Conference on Fossil Resources: web page –
http://fossilresources.org/9thCFR.html
PDF file - http://www.nature.nps.gov/geology/paleontology/pub/fossil_conf_9/9CFR%20proceedings.pdf

Murphey, P.C., Evanoff, E., 2011, Paleontology and
stratigraphy of the middle Eocene Bridger Formation,
southern Green River Basin,Wyoming: Proceedings
of the 9th Conference on Fossil Resources, Brigham
Young University Geology Studies. vol. 49, no. A, pp. 83-110
PDF file –
http://www.rockymountainpaleontology.com/bridger/download_pubs/Murphey_and_Evanoff_2011.pdf

More publications at –
http://www.rockymountainpaleontology.com/bridger/downloads.html

Yours,

Paul H

Monday, 2 September 2013

K-Pg Impactor was Likely Carbonaceous Chondrite Asteroid

K-Pg Impactor was Likely Carbonaceous Chondrite Asteroid

Goderis, S., R. Tagle, J. Belza, J. Smit, A. Montanari, F. Vanhaecke,
J. Erzinger, and Ph. Claeys, 2013, Reevaluation of siderophile
element abundances and ratios across the Cretaceous–Paleogene
(K–Pg) boundary: Implications for the nature of the projectile.
Geochimica et Cosmochimica Acta 120: 417–446
http://dx.doi.org/10.1016/j.gca.2013.06.010
http://www.sciencedirect.com/science/article/pii/S0016703713003438

Yours,

Paul H.