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Chesapeake Bay Impact Crater

en.wikipedia.org

11–20 of 26 posts

Re: Chesapeake Bay Impact Crater

#11
post #4

Earlier quoted context omitted.

The results are affected by the density of geologists.

Africa, China and South America have wonderful geologists and people just like America and Europe. What are you trying to say?

I think they're saying there are fewer, nothing about their ability.

Re: Chesapeake Bay Impact Crater

#12
post #4

Earlier quoted context omitted.

The results are affected by the density of geologists.

Africa, China and South America have wonderful geologists and people just like America and Europe. What are you trying to say?

> Africa, China and South America have wonderful geologists and people just like America and Europe.

Sure, but geology was largely created by Christians looking for proof that the bible was true, and then was later developed by people looking to prove that Christianity was false. So you have more geologists in areas with lots of people who have an axe to grind one way or the other with respect to that religion.

Re: Chesapeake Bay Impact Crater

#13
post #11

Earlier quoted context omitted.

Africa, China and South America have wonderful geologists and people just like America and Europe. What are you trying to say?

I think they're saying there are fewer, nothing about their ability.

Right.

BTW, you should note the increasing volume of paleontological discoveries coming out of China these days.

Re: Chesapeake Bay Impact Crater

#14
post #10
post #3

Looking at this map[1] of known impact craters, it looks like of the landmasses, eastern Canada, (western) Australia and northern Eurasia have experienced the most impacts and Africa, China and South America have experienced the fewest (Antarctica largely unknown). Now one thing which the map doesn’t represent is the position (coöperdinates) of the affected landmass at time of impact. [1] https://upload.wikimedia.org…

Could be related to age of crust?

All the continents have very old parts.

https://en.wikipedia.org/wiki/List_of_shields_and_cratons

Re: Chesapeake Bay Impact Crater

#15

This may have contributed to the immiseration and decline of the Jamestown colony, some thirty-five million years later: "Chesapeake Bay is the remains of a giant meteor crater. The impact shattered rock for miles, letting seawater infiltrate. Few Indian groups lived in the saltwater wedge, presumably for just that reason. Jamestown was bordered and undergirded by bad water. That bad water, the geographer Carville V.…

Haven't read 1493 yet, but looking forward to it. Read 1491 about a decade ago and it blew my mind. You just pushed 1493 back up towards the top of my "to read" list :)

I think it was 1491 where I first encountered the idea that red earthworms are invasive and the real reason "great forests" are in decline.

Re: Chesapeake Bay Impact Crater

#16
post #4
post #3

Looking at this map[1] of known impact craters, it looks like of the landmasses, eastern Canada, (western) Australia and northern Eurasia have experienced the most impacts and Africa, China and South America have experienced the fewest (Antarctica largely unknown). Now one thing which the map doesn’t represent is the position (coöperdinates) of the affected landmass at time of impact. [1] https://upload.wikimedia.org…

The results are affected by the density of geologists.

What’s interesting is the lack of “discoveries” in the Middle East, given the amount of drilling and geological work going on there. I guess when the oil is easy, there’s no motivation to look too hard.

Re: Chesapeake Bay Impact Crater

#19
The crater and the resulting aquifer disruption is a contributing factor to why several nearby cities import their water from far away. Another is that the cities of Norfolk, Portsmouth, and Newport News acquired water rights to nearby creeks long ago, back when nearby jurisdictions were rural counties, so by the time other areas experienced growth, all of their surface water rights were already owned by the oldest cities [1].

Caught in a wave of post-war growth, white flight, threatened by annexation, and discontent with having to buy local water from their neighbors, counties in this part of Virginia started becoming cities. In Virginia, cities are independent from counties -- the federal government therefore considers Virginia cities to be county-equivalent -- and cities are protected from annexation by adjacent cities.

Counties turned into cities, then merged with an adjacent friendly city to avoid annexation by a rival city; Princess Anne County merged into the City of Virginia Beach; Norfolk County merged with the City of South Norfolk and renamed itself to Chesapeake; Nansemond County changed into a city, then a year and half later merged into the City of Suffolk; the county surrounding the City of Hampton merged back into it; and the City of Newport News eventually merged by mutual agreement with the City of Warwick, even though 6 years prior Warwick changed from a county to a city to avoid that exact fate.

After experiencing major growth, Virginia Beach wanted to have a better negotiating position with Norfolk over water supply. It build a long interbasin transfer [1][2] to withdraw water from Lake Gaston on the Roanoke River, adjacent to the North Carolina border. Chesapeake joined as a minority partner. The resulting water is delivered into to Norfolk's system, who filters and treats it, and distributes it to Norfolk, Virginia Beach, the most urbanized areas of Chesapeake, and most military bases in the area.

[1] http://www.virginiaplaces.org/watersheds/lakegaston.html [2] https://www.vbgov.com/government/departments/public-utilitie...

Re: Chesapeake Bay Impact Crater

#20
post #4

Earlier quoted context omitted.

The results are affected by the density of geologists.

What’s interesting is the lack of “discoveries” in the Middle East, given the amount of drilling and geological work going on there. I guess when the oil is easy, there’s no motivation to look too hard.

It may also be that the area is geologically newer. (Disclaimer: I have no idea if it is.)
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