crater

[zarnic]

I've been out of school for ... well, a long time and I'm just now reading that there once was a large crater where Manson, Iowa now sits.&nbsp; There was?&nbsp; I thought Arizona was <em>THE</em> place to go, should we have visited Iowa instead?&nbsp; Why aren't we told these things?<img src="http://sitelife.space.com/ver1.0/content/scripts/tinymce/plugins/emotions/images/smiley-cry.gif" border="0" alt="Cry" title="Cry" /> <div class="Discussion_UserSignature"> <p><em>Wisdom doesn't automatically come with old age. Nothing does - except wrinkles.</em> A. Van Buren, 1978<br />* <em>An unbreakable toy is useful for breaking other toys.</em>  -- according to Van Roy</p> </div>

 

[origin]

<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>I've been out of school for ... well, a long time and I'm just now reading that there once was a large crater where Manson, Iowa now sits.&nbsp; There was?&nbsp; I thought Arizona was THE place to go, should we have visited Iowa instead?&nbsp; Why aren't we told these things? <br />Posted by zarnic</DIV><br /><br />There is no surface indication of the crater it was an impact during the Cretaceous.&nbsp; Meteor crater in Arizona is smaller but much more recent so it is very impressive, I have actually seen it from an airliner.</p><p>&nbsp;</p> <div class="Discussion_UserSignature"> </div>

 

[crazyeddie]

<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>I've been out of school for ... well, a long time and I'm just now reading that there once was a large crater where Manson, Iowa now sits.&nbsp; There was?&nbsp; I thought Arizona was THE place to go, should we have visited Iowa instead?&nbsp; Why aren't we told these things? <br /> Posted by zarnic</DIV></p><p>There are craters all over the globe. &nbsp;The one in Arizona is relatively new and well-preserved, due to the arid climate. You've probably seen this picture of the Manicouagan crater in Canada:</p><p><br /> <img src="http://sitelife.space.com/ver1.0/Content/images/store/1/15/e1a5f25d-a879-4282-9fab-78ad9050b27c.Medium.jpg" alt="" /></p><p>...but they are all over the place. &nbsp;Erosion eventually makes them difficult to see.&nbsp;</p> <div class="Discussion_UserSignature"> </div>

 

[MeteorWayne]

<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>There are craters all over the globe. &nbsp;The one in Arizona is relatively new and well-preserved, due to the arid climate. You've probably seen this picture of the Manicouagan crater in Canada: ...but they are all over the place. &nbsp;Erosion eventually makes them difficult to see.&nbsp; <br />Posted by crazyeddie</DIV><br /><br />Thought I'd comment on the vastly different size and age of these two.</p><p>Meteor Crater in Arizona is about 1.2 km (0.7 mi) in diameter and is ~ 49,000 years old.</p><p>Mnicouagan is 100 km across (~ 62 miles) and is 212 million years old.</p><p>BTW, here's the requisite meteor crater image </p><p><br /><img src="http://sitelife.space.com/ver1.0/Content/images/store/12/11/7c134aba-e384-4be4-bb67-432cfe08e33d.Medium.jpg" alt="" /></p><p>&nbsp;</p> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[zarnic]

Thank You all.&nbsp; All of these craters, filled-in or not, makes a mud hole pretty insignificant... unless one steps in it.&nbsp; <div class="Discussion_UserSignature"> <p><em>Wisdom doesn't automatically come with old age. Nothing does - except wrinkles.</em> A. Van Buren, 1978<br />* <em>An unbreakable toy is useful for breaking other toys.</em>  -- according to Van Roy</p> </div>

 

[MeteorWayne]

<p>Here's a link that shows the size and position, with a list of references you can try and look up to find out more.</p><p>http://www.unb.ca/passc/ImpactDatabase/images/manson.htm</p> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[MeteorWayne]

<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>Here's a link that shows the size and position, with a list of references you can try and look up to find out more.http://www.unb.ca/passc/ImpactDatabase/images/manson.htm <br />Posted by MeteorWayne</DIV><br /><br />Here's a link to the largest known on earth, Vredefort, in South Africa.</p><p>300 km (~ 190 miles) across dating from 2 billion years ago.</p><p>http://www.unb.ca/passc/ImpactDatabase/images/vredefort.htm</p><p>And another:</p><p>http://en.wikipedia.org/wiki/Vredefort_crater</p> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[zarnic]

<p>Visited the site you reference but on further investigation found out about the large Wilkes Land (showen at&nbsp;http://en.wikipedia.org/wiki/Wilkes_Land_crater) crater.&nbsp; The Arizona crater is becoming less and less a big deal and more just another impact.</p> <div class="Discussion_UserSignature"> <p><em>Wisdom doesn't automatically come with old age. Nothing does - except wrinkles.</em> A. Van Buren, 1978<br />* <em>An unbreakable toy is useful for breaking other toys.</em>  -- according to Van Roy</p> </div>

 

[MeteorWayne]

<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>Visited the site you reference but on further investigation found out about the large Wilkes Land (showen at&nbsp;http://en.wikipedia.org/wiki/Wilkes_Land_crater) crater.&nbsp; The Arizona crater is becoming less and less a big deal and more just another impact. <br />Posted by zarnic</DIV><br /><br />Well, it certainly would have been a big deal if you had been nearby at the time!</p><p>Besides, it's one you can clearly see from a location afew feet away. I was impressed, but of course, I'm...</p><p>Meteor Wayne </p> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[3488]

<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'><font color="#ff0000">Well, it certainly would have been a big deal if you had been nearby at the time!Besides, it's one you can clearly see from a location afew feet away. I was impressed, but of course, I'm...Meteor Wayne <br /> Posted by MeteorWayne</font></DIV></p><p><strong><font size="2">I expect you've been more than once Wayne. I must try & go & visit the natural wonders, at least some in your country. Meteor Crater is definitely on the list.</font></strong> </p><p><font size="4">How about Sudbury Crater, a 250 KM wide whopper in Canada?&nbsp;</font></p><p><font size="2"><strong>Quite old too, approx 1.9 GYO.&nbsp;</strong></font></p><p><strong><font size="2">This pair of modest craters 6.4 KM & 10 KM wide respectively in the Sahara Desert, Libya, slowly being exhumed. &nbsp;</font></strong></p><p><font size="4">Arkenu 1 & Arkenu 2 Craters Libya.&nbsp;</font></p><p><font size="2"><strong>Also another nice one within the USA.</strong></font> </p><p><font size="4">Upheaval Dome in Utah.&nbsp;</font></p><p><font size="2"><strong>Andrew Brown.&nbsp;</strong></font></p> <div class="Discussion_UserSignature"> <p><font color="#000080">"I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before".</font> <em><strong><font color="#000000">Linda Morabito </font></strong><font color="#800000">on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.</font></em></p><p><font size="1" color="#000080">http://www.launchphotography.com/</font><br /><br /><font size="1" color="#000080">http://anthmartian.googlepages.com/thisislandearth</font></p><p><font size="1" color="#000080">http://web.me.com/meridianijournal</font></p> </div>

 

[crazyeddie]

<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>I expect you've been more than once Wayne. I must try & go & visit the natural wonders, at least some in your country. Meteor Crater is definitely on the list.&nbsp;<br /> Posted by 3488</DIV></p><p>I visited it for the first time last year, it was awesome....although it's not a cheap admission ticket. &nbsp;But's there's lots to see and do in Northern Arizona. &nbsp;Lowell Observatory is well worth a visit, and it's nearby.&nbsp;</p> <div class="Discussion_UserSignature"> </div>

 

[3488]

<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'><font color="#ff0000">I visited it for the first time last year, it was awesome....although it's not a cheap admission ticket. &nbsp;But's there's lots to see and do in Northern Arizona. &nbsp;Lowell Observatory is well worth a visit, and it's nearby.&nbsp; <br /> Posted by crazyeddie</font></DIV></p><p><strong><font size="2">Thanks Crazyeddie.</font></strong></p><p><strong><font size="2">It will be worth what ever the admission ticket is. Lowell Observatory, of course I would go & visit. Also Sunset Crater Volcano & the Grand Canyon are not too far away also IIRC?</font></strong></p><p><strong><font size="2">I hope to plan a trip over sometime, maybe to watch the JUNO launch or the MSL one (that may be easier & at a better time of the year for a British visitor) & then go around & travel a bit. Need to get my Chinese wife a US Visit Visa, Dunno how easy or hard that's gonna be?</font></strong></p><p><strong><font size="2">Andrew Brown.&nbsp;</font></strong></p> <div class="Discussion_UserSignature"> <p><font color="#000080">"I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before".</font> <em><strong><font color="#000000">Linda Morabito </font></strong><font color="#800000">on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.</font></em></p><p><font size="1" color="#000080">http://www.launchphotography.com/</font><br /><br /><font size="1" color="#000080">http://anthmartian.googlepages.com/thisislandearth</font></p><p><font size="1" color="#000080">http://web.me.com/meridianijournal</font></p> </div>

 

[adrenalynn]

<p>Museum of Northern Arizona is worth a visit as well.</p><p>&nbsp;I used to be a docent at Meteor Crater (and at MNA).&nbsp; I've even been to the bottom a time or two, but that's another story entirely - along with touching the Blink Microscope that Lowell used to discover <strong><em><u>THE PLANET</u></em></strong> Pluto. </p><p>If you're in to archeology, paleontology, geology - there's a wealth to make the trip worthwhile too.</p> <div class="Discussion_UserSignature"> <p>.</p><p><font size="3">bipartisan</font>  (<span style="color:blue" class="pointer"><span class="pron"><font face="Lucida Sans Unicode" size="2">bī-pär'tĭ-zən, -sən</font></span></span>) [Adj.]  Maintaining the ability to blame republications when your stimulus plan proves to be a devastating failure.</p><p><strong><font color="#ff0000"><font color="#ff0000">IMPE</font><font color="#c0c0c0">ACH</font> <font color="#0000ff"><font color="#c0c0c0">O</font>BAMA</font>!</font></strong></p> </div>

 

[MeteorWayne]

<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>I visited it for the first time last year, it was awesome....although it's not a cheap admission ticket. &nbsp;But's there's lots to see and do in Northern Arizona. &nbsp;Lowell Observatory is well worth a visit, and it's nearby.&nbsp; <br />Posted by crazyeddie</DIV><br /><br />Yeah that describes my trip. A few days at the Grand Canyon, Meteor Crater (and BTW, the&nbsp;rest of the display&nbsp;there makes the price of admission worthwhile IMHO), the Lowell Observatory, which was my first view ever through a hydrogen-alpha filter of the sun. To see the sun moving before your eyes there was at least as impressive.</p><p>It wuz a great week!</p> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[MeteorWayne]

Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>I've even been to the bottom a time or two, but that's another story entirely - along with touching the Blink Microscope that Lowell used to discover THE PLANET Pluto. Posted by adrenalynn</DIV><br /><br />Now I'm jealous <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[zarnic]

I want to take this opportunity&nbsp;to thank all of you for taking a moment and sharing with us the location of worthwhile craters to visit.&nbsp; Now we all know where to go on our next vacation, gas permitting. <div class="Discussion_UserSignature"> <p><em>Wisdom doesn't automatically come with old age. Nothing does - except wrinkles.</em> A. Van Buren, 1978<br />* <em>An unbreakable toy is useful for breaking other toys.</em>  -- according to Van Roy</p> </div>