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Origyptian Wrote:
> How long does a portion of bedrock outcropping
> need to be exposed to the environment, and what
> are the moisture requirements in the bedrock, for
> it to become as severely eroded as the Sphinx and
> its Enclosure?

That depends on a great many factors, and illustrates exactly why it is pseudoscience to try and date exposure of an ancient limestone bed by weathering.

As an aside, Schoch did not use surface weathering of the sphinx to come up with his approximate date. He used subsurface weathering, which is useless in that area. If you look at the pic I posted, you can see that Member 1 is an ancient shoal. Entire heads of coral have been found in this layer. The acoustical properties (what Schoch used) would be expected to vary greatly in such a non-uniform bed.

Harte

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Subject Views Written By Posted
age of the Sphinx 4875 Open mind 24-Nov-15 13:54
Re: age of the Sphinx 1225 Jon Ellison 24-Nov-15 18:34
Re: age of the Sphinx 1126 Pete Vanderzwet 25-Nov-15 00:08
Re: age of the Sphinx 1018 Open mind 25-Nov-15 04:20
Re: age of the Sphinx 901 Jon Ellison 25-Nov-15 14:53
Re: age of the Sphinx 956 Open mind 25-Nov-15 04:43
Re: age of the Sphinx 882 Origyptian 22-Dec-15 18:05
Re: age of the Sphinx ?. how about 800,000 years 1110 laughin 19-Dec-15 15:34
Re: age of the Sphinx ?. how about 800,000 years 863 Harte 24-Dec-15 01:01
Re: age of the Sphinx ?. how about 800,000 years 790 Corpuscles 24-Dec-15 01:39
Re: age of the Sphinx ?. how about 800,000 years 899 Harte 24-Dec-15 14:32
Re: age of the Sphinx ?. how about 800,000 years 758 Origyptian 24-Dec-15 14:49
Re: age of the Sphinx ?. how about 800,000 years 876 Audrey 25-Dec-15 23:39
Re: age of the Sphinx ?. how about 800,000 years 788 Harte 26-Dec-15 00:21
Re: age of the Sphinx ?. how about 800,000 years 693 Audrey 26-Dec-15 01:44
Re: age of the Sphinx ?. how about 800,000 years 744 Origyptian 26-Dec-15 02:40
Re: age of the Sphinx ?. how about 800,000 years 754 Origyptian 24-Dec-15 06:17
Re: age of the Sphinx ?. how about 800,000 years 910 Harte 24-Dec-15 14:37
Re: age of the Sphinx ?. how about 800,000 years 756 Origyptian 24-Dec-15 14:56
Re: age of the Sphinx ?. how about 800,000 years 733 Harte 24-Dec-15 17:23
Re: age of the Sphinx ?. how about 800,000 years 760 Origyptian 24-Dec-15 18:23
Re: age of the Sphinx ?. how about 800,000 years 754 Harte 24-Dec-15 22:51
Re: age of the Sphinx ?. how about 800,000 years 685 Origyptian 25-Dec-15 18:11
Re: age of the Sphinx ?. how about 800,000 years 787 Harte 25-Dec-15 20:19
Re: age of the Sphinx ?. how about 800,000 years 714 Origyptian 26-Dec-15 02:50
Re: age of the Sphinx ?. how about 800,000 years 741 Harte 26-Dec-15 21:45
Re: age of the Sphinx ?. how about 800,000 years 701 Ulrich 23-Jan-16 18:02
Re: age of the Sphinx 868 Mdsign 29-Dec-15 12:01
Re: age of the Sphinx 798 SandyJesse 06-Jan-16 00:59
Re: age of the Sphinx 912 Harte 09-Jan-16 20:43
Re: age of the Sphinx 810 Mdsign 11-Jan-16 10:19
Re: age of the Sphinx 852 SandyJesse 12-Jan-16 23:49
Re: age of the Sphinx 773 Merrell 11-Jan-16 12:07
Re: age of the Sphinx 591 Harte 23-Jan-16 17:19
Re: age of the Sphinx 676 Mdsign 24-Jan-16 16:18
Re: age of the Sphinx 691 Harte 24-Jan-16 22:36
Re: age of the Sphinx 718 Mdsign 25-Jan-16 10:33
Re: age of the Sphinx 607 Origyptian 25-Jan-16 13:45
it is a dog 729 Juha 25-Jan-16 14:50
Re: it is a dog 845 Thanos5150 25-Jan-16 16:37
Re: it is a dog 736 Harte 26-Jan-16 02:14
Re: it is a dog 678 Thanos5150 26-Jan-16 02:35
its leo everywhere 694 Mdsign 26-Jan-16 10:20
Assyrian sphinx is bull 964 Juha 26-Jan-16 12:56
Re: Assyrian sphinx is bull 755 Mdsign 26-Jan-16 13:01
Re: Assyrian sphinx is bull 595 Origyptian 26-Jan-16 14:29
Re: it is a dog 812 Harte 26-Jan-16 11:01
Re: it is a dog 644 Jon Ellison 26-Jan-16 12:18
Re: it is a dog 634 Origyptian 26-Jan-16 14:41
Re: it is a dog 713 Jon Ellison 26-Jan-16 17:10
Re: it is a dog 684 Thanos5150 26-Jan-16 23:31
Re: it is a dog 741 Harte 27-Jan-16 01:08
Re: it is a dog 856 Thanos5150 27-Jan-16 05:49
Re: it is a dog 693 Harte 27-Jan-16 11:12
Re: it is a dog 515 Thanos5150 27-Jan-16 18:21
Re: it is a dog 585 DUNE 27-Jan-16 18:32
Dogleg 744 Dr. Troglodyte 27-Jan-16 19:07
Re: Dogleg 807 Thanos5150 28-Jan-16 00:26
Re: it is a dog 632 Origyptian 27-Jan-16 14:24
Re: it is a dog 628 Jon Ellison 27-Jan-16 11:06
Re: it is a dog 634 Harte 27-Jan-16 11:17
Re: it is a dog 532 Jon Ellison 27-Jan-16 11:22
Re: it is a dog 723 Audrey 27-Jan-16 04:42
Re: it is a dog 613 Thanos5150 27-Jan-16 04:53
Re: it is a dog 583 Audrey 27-Jan-16 06:20
Re: it is a dog 634 Thanos5150 27-Jan-16 19:15
Re: it is a dog 866 Audrey 28-Jan-16 01:55
Re: it is a dog 765 Thanos5150 28-Jan-16 20:24
Re: it is a dog 948 Audrey 29-Jan-16 03:14
Re: it is a dog 575 Juha 29-Jan-16 08:23
Re: it is a dog 547 Mdsign 29-Jan-16 09:30
Re: it is a dog 620 Juha 29-Jan-16 11:01
Re: it is a dog 668 Mdsign 29-Jan-16 11:57
Re: it is a dog 632 Origyptian 29-Jan-16 13:30
Age of Pyramids 638 Juha 29-Jan-16 17:07
Re: Age of Pyramids 525 Origyptian 29-Jan-16 17:42
Re: Age of Pyramids 580 Juha 29-Jan-16 18:29
Re: Age of Pyramids 585 Jon Ellison 29-Jan-16 18:35
Re: Age of Pyramids 501 Juha 29-Jan-16 21:19
Re: Age of Pyramids 607 Jon Ellison 29-Jan-16 21:50
Re: Age of Pyramids 688 Audrey 30-Jan-16 06:46
Re: Age of Pyramids 585 brett z 30-Jan-16 13:14
Re: Age of Pyramids 640 Jon Ellison 30-Jan-16 17:58
Straight lines 605 randompHactor 30-Jan-16 18:15
Re: Age of Pyramids 590 Origyptian 29-Jan-16 18:49
Re: Age of Pyramids 640 Juha 29-Jan-16 21:43
Re: it is a dog 537 Audrey 29-Jan-16 17:58
Re: it is a dog 678 Juha 29-Jan-16 22:39
Re: it is a dog 845 Thanos5150 29-Jan-16 22:37
Re: it is a dog 582 Audrey 30-Jan-16 06:21
Re: it is a dog 642 Thanos5150 30-Jan-16 06:56
Re: it is a dog 487 Audrey 30-Jan-16 07:15
Re: it is a dog 623 Origyptian 30-Jan-16 07:30
Was the Sphinx Originally an Animal? 723 Thanos5150 30-Jan-16 21:35
Re: it is a dog 754 cladking 30-Jan-16 21:52
Re: it is a dog 764 Thanos5150 31-Jan-16 02:15
Re: Was the Sphinx Originally an Animal? 2115 Thanos5150 14-Feb-16 21:54
Re: Was the Sphinx Originally an Animal? 717 DUNE 14-Feb-16 23:45
Re: Was the Sphinx Originally an Animal? 669 Thanos5150 15-Feb-16 00:12
Re: Was the Sphinx Originally an Animal? 704 Audrey 15-Feb-16 03:17
Re: Was the Sphinx Originally an Animal? 703 Thanos5150 15-Feb-16 03:51
Re: Was the Sphinx Originally an Animal? 628 Origyptian 15-Feb-16 00:54
Re: Granite ....to protect against high water 786 Thunderbird 15-Feb-16 03:02
Re: Granite ....to protect against high water 757 Origyptian 15-Feb-16 06:54
Re: Granite ....to protect against high water 663 DUNE 15-Feb-16 10:38
Re: Granite ....to protect against high water 588 Origyptian 15-Feb-16 11:41
Re: Granite ....to protect against high water 608 Jon Ellison 15-Feb-16 13:46
Re: Granite ....to protect against high water 594 Origyptian 15-Feb-16 16:09
Re: Nile and harbor management 708 Thunderbird 15-Feb-16 16:31
Re:Ancient Nile elevations 673 Thunderbird 15-Feb-16 22:59
Re: Was the Sphinx Originally an Animal? 907 Thanos5150 16-Feb-16 23:41
Re: it is a dog 634 Mdsign 29-Jan-16 10:03
Re: Dumuzi....Osiris 829 Thunderbird 26-Jan-16 03:45
Re: Dumuzi....Osiris 1012 Thanos5150 26-Jan-16 04:41
Re: The Akhet (Inundation) and ANPU 690 Thunderbird 26-Jan-16 15:05
Re: Dumuzi....Osiris 677 Mdsign 27-Jan-16 09:57
Re: age of the Sphinx 858 Audrey 26-Jan-16 05:21
back to the time period question 745 Mdsign 27-Jan-16 13:12
Re: Why are the Causeways where they are, 748 DUNE 27-Jan-16 12:01
Re: Why are the Causeways where they are, 633 Spiros 27-Jan-16 13:11
Re: Why are the Causeways where they are, 674 Spiros 27-Jan-16 13:53
Re: Why are the Causeways where they are, 703 cladking 27-Jan-16 15:42
Re: Why are the Causeways where they are, 553 Jon Ellison 27-Jan-16 18:35
Re: Why are the Causeways where they are, 530 cladking 27-Jan-16 20:37
Re: age of the Sphinx 618 Harte 29-Jan-16 19:24
Re: age of the Sphinx 563 randompHactor 29-Jan-16 19:32
Re: age of the Sphinx 581 Origyptian 29-Jan-16 19:39
Re: age of the Sphinx 851 Martin Stower 15-Feb-16 17:52
Re: age of the Sphinx 629 Origyptian 15-Feb-16 18:18
Re: age of the Sphinx 676 Martin Stower 19-Feb-16 17:53
Re: age of the Sphinx 558 Origyptian 19-Feb-16 18:00
Re: age of the Sphinx 854 Martin Stower 19-Feb-16 20:23
Re: age of the Sphinx 623 Thanos5150 15-Feb-16 18:22
Re: age of the Sphinx 615 Origyptian 15-Feb-16 18:36
Re: age of the Sphinx 673 Thanos5150 15-Feb-16 19:21
Re: age of the Sphinx 577 Origyptian 15-Feb-16 19:55
Re: age of the Sphinx 647 Thanos5150 15-Feb-16 21:27
Re: age of the Sphinx 657 Martin Stower 15-Feb-16 22:00
Re: age of the Sphinx 623 Thanos5150 15-Feb-16 22:34
Re: age of the Sphinx 602 Origyptian 15-Feb-16 23:09
Re: age of the Sphinx 570 Martin Stower 16-Feb-16 19:45
Re: age of the Sphinx 778 Origyptian 16-Feb-16 20:07
Re: age of the Sphinx 548 Martin Stower 16-Feb-16 22:03
Re: age of the Sphinx 607 Origyptian 16-Feb-16 23:33
Re: age of the Sphinx 728 Audrey 16-Feb-16 23:44
Re: age of the Sphinx 663 Martin Stower 17-Feb-16 14:40
Re: age of the Sphinx 602 Origyptian 17-Feb-16 15:18
Re: age of the Sphinx 667 Martin Stower 17-Feb-16 15:31
Re: age of the Sphinx 684 Origyptian 17-Feb-16 15:58
Re: age of the Sphinx 568 Audrey 16-Feb-16 23:37
Re: age of the Sphinx 651 Harte 17-Feb-16 11:24
Re: age of the Sphinx 626 Martin Stower 17-Feb-16 15:13
Re: age of the Sphinx 584 Origyptian 17-Feb-16 15:39
Re: age of the Sphinx 569 Martin Stower 17-Feb-16 15:54
Re: age of the Sphinx 592 Origyptian 17-Feb-16 16:40
Re: age of the Sphinx 629 Martin Stower 17-Feb-16 16:55
Re: age of the Sphinx 565 Origyptian 17-Feb-16 17:08
Re: age of the Sphinx 589 Martin Stower 17-Feb-16 23:00
Re: age of the Sphinx 587 Origyptian 17-Feb-16 23:58
Re: age of the Sphinx 485 Martin Stower 18-Feb-16 00:10
Re: age of the Sphinx 658 Origyptian 18-Feb-16 00:15
Re: age of the Sphinx 554 Martin Stower 18-Feb-16 01:07
Re: age of the Sphinx 691 Harte 17-Feb-16 23:55
Re: age of the Sphinx 598 Origyptian 17-Feb-16 15:50
Re: age of the Sphinx 623 Martin Stower 17-Feb-16 14:55
Re: age of the Sphinx 579 Origyptian 17-Feb-16 15:47
Re: age of the Sphinx 535 Martin Stower 17-Feb-16 16:42
Re: age of the Sphinx 492 Origyptian 17-Feb-16 16:49
Re: age of the Sphinx 699 Martin Stower 17-Feb-16 17:03
Re: age of the Sphinx 598 Origyptian 17-Feb-16 17:10
Re: age of the Sphinx 582 Martin Stower 17-Feb-16 23:40
Re: age of the Sphinx 504 Origyptian 18-Feb-16 00:03
Re: age of the Sphinx 635 Martin Stower 18-Feb-16 00:22
Re: age of the Sphinx 591 Harte 17-Feb-16 23:59
Re: age of the Sphinx 572 Martin Stower 18-Feb-16 01:14
Re: age of the Sphinx 531 Origyptian 15-Feb-16 22:51
Re: age of the Sphinx 579 Audrey 15-Feb-16 23:55
Re: age of the Sphinx 527 Origyptian 16-Feb-16 00:25
Re: age of the Sphinx 522 Audrey 16-Feb-16 01:40
Re: age of the Sphinx 594 Origyptian 16-Feb-16 02:50
Re: age of the Sphinx 575 Audrey 16-Feb-16 03:05
Re: age of the Sphinx 576 Origyptian 16-Feb-16 15:06
Re: age of the Sphinx 651 Thanos5150 16-Feb-16 00:20
Re: age of the Sphinx 551 Martin Stower 16-Feb-16 00:37
Re: age of the Sphinx 610 Thanos5150 16-Feb-16 00:44
Re: age of the Sphinx 576 Audrey 16-Feb-16 01:33
Re: age of the Sphinx 581 Martin Stower 16-Feb-16 02:41
Re: age of the Sphinx 679 Audrey 16-Feb-16 02:52
Re: age of the Sphinx 568 Martin Stower 16-Feb-16 03:03
Re: age of the Sphinx 663 Audrey 16-Feb-16 03:08
Re: age of the Sphinx 634 Martin Stower 16-Feb-16 03:18
Re: age of the Sphinx 770 Audrey 16-Feb-16 03:36
Re: age of the Sphinx 647 Jon Ellison 16-Feb-16 04:23
Re: age of the Sphinx 694 Martin Stower 16-Feb-16 14:28
Re: age of the Sphinx 653 Martin Stower 16-Feb-16 14:41
Re: age of the Sphinx 634 Audrey 16-Feb-16 01:30
Re: age of the Sphinx 499 Origyptian 16-Feb-16 02:40
Re: age of the Sphinx 646 Martin Stower 15-Feb-16 21:41
Re: age of the Sphinx 602 Origyptian 15-Feb-16 23:06
Re: age of the Sphinx 734 Martin Stower 16-Feb-16 00:03
Re: age of the Sphinx 701 cladking 16-Feb-16 03:30
Re: age of the Sphinx 690 Martin Stower 16-Feb-16 14:48
Re: age of the Sphinx 686 cladking 16-Feb-16 19:55
Re: age of the Sphinx 700 Martin Stower 15-Feb-16 16:28
Re: age of the Sphinx 713 Brian Patterson 29-Jan-16 20:08


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