![]() |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
![]()
Dr. George E. Williams,
Department of Geology and Geophysics University of Adelaine, Adelaine South Australia, Australia ) Second posting (II) due I have got some additional data: Some remarks about your article Reviews of Geophysics, 38, 1/Feb. 2000, pp. 37-59. I'am an amateur geologist Hannu Poropudas from Finland. I have red your article mentioned above and I have couple questions if you please could answer to them. 1. Interpretation Weeli Wolli lamina couplets are semidiurnal increments grouped in fortnightly cycles or lamina couplets are diurnal increments arranged in monthly cycles. By both these interpretations there were about (28 - 30) lunar days per synodic month at 2450 Ma. (page 54) This interpretation is good agreement BIF (banded iron formation) data written in Schopf's (Editor), 1983. Earth's Earliest Biosphere. It's Origin and Evolution. ? (This conflicts also with data of average sedimentation rate of Weeli Wolli Formation ( 30 um/year or about 50 um/year, u = micro) ? 1.a. What FFT-spectrum you have about this count ? 1.b. How many mean solar days you have in this case per synodic month ? 1.c. If this interpretation is assumed, then do you see any "year marks" (seasonal signs) in laminae ? 1.d. If "year marks" (seasonal signs) are present then how many synodic months (+-error limits from FFT) you find ? 1.e. If interpretation is true and the number of synodic months per year could be estimated, then how close the Moon has been at 2450 Ma ago (one Earth-Moon close (not too close) approach ???) (2450 Ma, BIF, Weeli Wolli Formation, Hammersley Basin)? 1.f. Estimeted sedimentation rates (with exact age determinations, error limits + - few Ma) would indicate that an average sedimentation rate in Weeli Wolli Formation has been more than 30 micrometers per year and possible has been at most about 50 micrometers per year ? 1.g. These results would conflict with all of your interpretations about ancient time data from Weeli Wolli Formation due one microlaminae would correspond probably more or equal than about 3.68 - 6.24 years per microlaminae ? 1.h. Observed periodicities from the Weeli Wolli Formation could be range from few tens of years to couple hundreds of years (could this be some glacial periodicity ?)? 2. The value of 400 + - 7 solar days/yr at about 620 Ma indicated by the Elatina-Reynella rhythmites conflicts with paleontological data for the early to middle Paleozoic, which suggest about 400 - 420 d/yr between 350 and 520 Ma (Figure 2). (page 52) 2.a. What has happeded your year 1989 +- error limit estimates about this same Elatina Formation you there had 400 + - 20 days/yr, (max) about 420 days/yr result could possible not be conflicting ? 2.b. If 420 days/yr is not conflicting then only your max estimate could be correct (twice the maximum number of laminae per lamina-cycle 16 * 2 = 32 days per synodic month and 13.1 synodic months per tropical year, gives about 420 days per year. EOS, vol. 70, no. 3, pp. 33, 40-41 (1989))? 3. About ancient time data from the Big Cottonwood Formation (sedimentation age 900 Ma + -100 Ma). 3.a. I think that only reliable data which could be useful is possible the primary data 13.5 synodic months per tropical year, which is counted directly from the sample ? 3.b. If 13.5 synodic months per tropical year is true, then what are error limits about this count ? Best Regards, Hannu Poropudas Vesaisentie 9E, 90900 Kiiminki Finland local telephone number : 050-5339808 email: |
#2
|
|||
|
|||
![]()
Hannu K.J. Poropudas wrote:
Dr. George E. Williams, Department of Geology and Geophysics University of Adelaine, Adelaine South Australia, Australia Hannu Poropudas Vesaisentie 9E, 90900 Kiiminki Finland If you're going to send a letter to a department head, use your SPELL CHECKER! Your grammar is atrocious as well. |
#3
|
|||
|
|||
![]()
Dear Hannu K.J. Poropudas:
"Hannu K.J. Poropudas" h.poropudasATluukku.comNOT wrote in message om... Dr. George E. Williams, Department of Geology and Geophysics University of Adelaine, Adelaine South Australia, Australia (george.williamsATadelaide.edu.auNOT) Do NOT post other people's email adresses in postings in usenet. If you wish to receive additional spam by not encoding your email address, that is your choice. But do not set up others in the same way. If you have his email address, simply send him email. David A. Smith |
#4
|
|||
|
|||
![]() Bigdakine wrote: Subject: About ancient time data from the Weeli Wolli Formation and the Big Cottonwood Formation From: (Hannu K.J. Poropudas) Date: 12/5/04 3:46 AM Hawaiian Standard Time Message-id: Dr. George E. Williams, Department of Geology and Geophysics University of Adelaine, Adelaine South Australia, Australia ) Second posting (II) due I have got some additional data: Some remarks about your article Reviews of Geophysics, 38, 1/Feb. 2000, pp. 37-59. I'am an amateur geologist Hannu Poropudas from Finland. I have red your article mentioned above and I have couple questions if you please could answer to them. Is there a reason you are posting a private email on the internet? This is not a private email. I would like this discussion to be public. I would like to add couple matters still into my text: 1. I would like to correct one wrong word in my text: word "microlaminae" should be "microband" (this consist laminae couplet). 2. Average sedimentation rate 33 micrometers per year has also been estimated pure BIF only, namely from Joffre Member, which is below Weeli Wolli Formation (Compacted sedimentation rate). Also compacted average sedimentation rate (26 - 34) micrometers per year has also been estimated from Weeli Wolli Formation. (I have not those references in my hands now, but I remember that these results were from the Australian Journal of Earth Sciences (2002), Dr. Pickard was the author if I remember right and from some other references which are mentioned in Williams (2000) reference list.) So it seems to be impossible that compacted average sedimentation rate would have been so large as (100 - 1000) micrometers per year as it would be required in order that Weeli Wolli Fm. (BIF) would represent daily or monthly or even annual marks of time in its lamnae (submicrobands, microbands, mesobands etc.). This can oly be proven false if direct average compacted sedimentation rate could be estimated with aid of direct exact age measurements and lenght measurements from (BIF) Weeli Wolli Fm. only ? Hannu Stuart Dr. Stuart A. Weinstein Ewa Beach Institute of Tectonics "To err is human, but to really foul things up requires a creationist" "Creationists aren't impervious to Logic: They're oblivious to it." |
Thread Tools | |
Display Modes | |
|
|