[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Number of days 100 million years ago



The Earth-Moon distance for the 400 Ma mark seems WAAAAAYYY too close!!

Even the ~900 Ma values found by Kvale et al. (1999) found a semimajor
axis of just under 365000 km.

http://jsedres.geoscienceworld.org/content/69/6/1154.abstract

On Mon, July 1, 2013 12:09 pm, john-schneiderman@cox.net wrote:
> Are these data points correct?
>
>
> Years ago     Days/Year     Hours/Day     Distance Moon from Earth
>
> Current          365.25            24               384000 km
>
>   65,000,000    ~369           ~23.75         ~360000 km
> 100,000,000   ~371           ~23.60         ~336000 km
>
> 400,000,000   ~400           ~22              ~192000 km
>
>
>


Thomas R. Holtz, Jr.
Email: tholtz@umd.edu   Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
http://www.geol.umd.edu/~tholtz/
Fax: 301-314-9661

Faculty Director, Science & Global Change Program, College Park Scholars
http://www.geol.umd.edu/sgc
Fax: 301-314-9843

Mailing Address:        Thomas R. Holtz, Jr.
                        Department of Geology
                        Building 237, Room 1117
                        University of Maryland
                        College Park, MD 20742 USA