Thanks BenLurkin.
Posted on 10/30/2019 3:10:35 PM PDT by BenLurkin
Thanks BenLurkin.
I was wondering what changes in earth’s oxygen levels might have been. O2 in the atmosphere wasn’t always there - so how has it changed. Came across an interesting article and they talk about a possible mechanism that keeps atmosphere levels and climate fairly well-balanced over the millions of years.
I’m always amazed at how wonderful the world is, and how so many things are inter-related. And that if something does go out of whack for awhile, it can recover itself too.
https://www.livescience.com/56219-earth-atmospheric-oxygen-levels-declining.html
Excerpt:
One way out of this conundrum is a well-known but relatively untested concept that suggests “that on timescales longer than a few hundred thousand years, atmospheric carbon dioxide and Earth’s temperature are regulated via a ‘silicate weathering thermostat,’” Higgins said.
Basically, increasing atmospheric carbon dioxide levels will boost the rates at which volcanic rocks wear down and their components wash into the seas, which can then go on to trap atmospheric carbon dioxide in ocean minerals. This means that “one can have a change in atmospheric oxygen with no observable change in average carbon dioxide,” Higgins said. “Importantly, this silicate weathering thermostat is one reason why Earth is thought to have remained habitable for billions of years despite changes in solar luminosity.”
The solar constant isn’t.
There is only one cause that Trumps that...
It would be a bummer if we reduced CO2, and then discovered that we were overdue for our next glacial period, and the CO2 levels had been the only thing holding it off...
I imagine such an event would blast a lot of vaporized sea water and entrained atmosphere into space.
Maybe we lost half the atmosphere into space? That would be very hard on everything that breathed. Only small burrow dwellers used to breathing oxygen depleted air deep in their burrows or critters who nested by burying their eggs would survive. Which, by some strange coincidence, is pretty much a description of the terrestrial Chicxulub survivors.
Note the 10,000 year trough in the blue line between 70 and 60,000 years ago that was precipitated by the great Toba eruption about 73kya that left a caldera about 18 by 65 miles. We need to find causes for the other significant dips. Any candidates?
Please go back to the religion Forum since your mind does not seem to be open to the possibilities of science. Perhaps you can at least see it is possible to tell the age of a tree by counting the tree rings. Scientists have taken cores of glaciers, ancient trees, lake bed sediments, and layers formed in sediments that have hardened into rock. The number of these layers has been taken back for hundreds of thousands of years, and that is the simplest and most direct way of measuring age. There are a number of others. Open your mind to see the vastness of God’s creations and actions. Such a piddling little God to only have 6,000 years of creation. How limited your belief has left you. God deserves better than that.
It would not surprise me if a fairly hard knock had something to do with it. However, I don’t know where you got the idea that the asteroid that killed off the dinosaurs, did not also change the climate. Somewhere I have a book on climatology and earth’s history which, if I remember correctly, did describe changes. I will look for it and also Google now.
https://www.newscientist.com/article/2170015-asteroid-that-killed-the-dinosaurs-caused-massive-global-warming/ [This article addresses long term warming. Since it also referred to a theory that the Deccan traps killed off many dinosaurs before the meteor, I also found this Feb. 2019 National Geographic article covering detailed analysis of the Deccan by two university teams including the Alvarez family.]
https://www.nationalgeographic.com/science/2019/02/what-actually-killed-dinosaurs-volcanoes-heat-up-debate/
https://www.sciencedaily.com/releases/2017/10/171031111446.htm [This article says there is evidence of more severe immediate post event cooling. There are several other extinction article links here with controversial arguments about the decline of dinosaurs and severity of fires, etc.
That ice core stuff has already been debunked, along with the AGW crock. My God didn’t need 450 billion years to create the amazing, exquisitely beautiful SYSTEMS that operate in EVERYTHING, from the DNA and individual cells on up. God spoke what He wanted and it was DONE; INSTANTLY. You might want to pick up a Bible, and READ it. Have a nice day.
I think with all this we make a mistake by trying to focus on and find just one cause, when it was more than likely a combination of several different influences that came about at the same time.
Quit polluting my religion with that BS! One man made all that crap up a few hundred years ago.
"James Ussher (or Usher; 4 January 1581 – 21 March 1656) was the Church of Ireland Archbishop of Armagh and Primate of All Ireland between 1625 and 1656. He was a prolific scholar and church leader, who today is most famous for his identification of the genuine letters of the church father, Ignatius, and for his chronology that sought to establish the time and date of the creation as "the entrance of the night preceding the 23rd day of October... the year before Christ 4004"; that is, around 6 pm on 22 October 4004 BC, per the proleptic Julian calendar. "
Brutha Usser merely took the Scriptures at face value. He counted the number of generations as listed in the Scriptures, and arrived at a number. Matthew’s gospel gives a straight line list of all the generations from Adam to Christ. WE can tack on some numbers to bring it up to today. It’s not an exact science. That is why it’s stated in a range of from approx. 6,000 to 10,000 yrs. And if that is not precisely correct, I think it’ll be much closer to the truth than 450 billion is. Blessings on your day.
I have read significant portions of the Bible, which was written by a number of humans who believed that they were reporting what God wanted them to. Humans, especially those who believe they are absolutely correct make mistakes. Just like the leftists who believe that they are doing and reporting what God or some other source wants them to do. I give the writers of the Bible the same grain of salt I give the scientific writers of papers. Glad I have the self-confidence to think for myself.
There is one very important part of the scripture that Young Earth Creationists seem to gloss over. Gen: 4-15,16,17. ...”Then the Lord put a mark on Cain so that no one who found him would kill him.” “So Cain went out from the Lord’s presence and lived in the land of Nod, east of Eden.” “Cain lay with his wife, and she became pregnant and gave birth to Enoch.”
So here we see that although Adam and Eve and their two son where supposed to be the first people, there were obviously other people who were not born in God’s paradise who could kill Cain or marry him. Bishop Usser’s calculation was based on the “begats’ listed in the Bible, but we have no information on how long these other humans had been on earth. Thus it appears to me the Garden of Eden story was written to show how God had created a perfect human who would be totally obedient to him if they lacked knowledge and did not listen to snakes. Humans being what they are, the struggle has been how to become perfect humans again.
Thanks. It took 300 man-years of labor (using modern power tools) to build the "replica" of Noah's ark; also, none of the critters on the islands SE of Asia can swim to or from the mainland, so those species could not have been on the ark. There was also no food supply for the critters; if food had been miraculously provided, it would have been mentioned (e.g., the miracle of manna was, from the account of the time after the Exodus). In the rabbinical sources other craft were on the water during The Deluge. Also, survivors of The Deluge could not light fires, possibly due to the sudden decline in oxygen (this is from I.V., who attributed The Deluge to the arrival of a stream, more like a bath, of hydrogen, which combined with much of the Earth's oxygen to produce a monstrous amount of rain), which ordinarily wouldn't be a problem if there were no survivors because they hadn't invented treading water yet. The origins given and there for various ancient neighbors of the Hebrews also is suggestive of no worldwide flood.
There are other flood stories from a number of parts of the world. They do not always speak of all the land being totally covered. However, we have seen one and two day storms recently that dropped 40 and 50 inches of rain. What if because of ancient vulcanism or meteor event(s) there were 40 days of such powerful rain. Calculating 40” per two days for 40 days gives over 65 vertical feet of water. That would sure drown a lot of people and animals and leave a very strong impression; which, as people do, would be exaggerated some more in the retelling.
Do you remember where or which cultures Velikovsky described when he made his hypotensis about the hydrogen stream/bath? It has been many years since I read his books, but I seem to recall he would list a number of odd facts occurring around the same time to serve as a source for his conjectures. I specifically remember him describing great masses of tangled together bones in the far north of our continent which I have also read described elsewhere, and which figures in the Firestone theory of north American meteor strike(s). This is one reason why I have found Firestone’s work so believable.
"Earth In Upheaval" was the book where he gathered the evidence for large death assemblages in the Arctic, particularly Siberia; some of the Arctic islands off Siberia are stuffed with bones (and tusks) of now-extinct animals, clearly they were deposited in one fell swoop.
40 days of worldwide rain would not be within the capacity of the known hydrologic cycle, IOW, it would have to be an unusual event, and that's what is recorded here and there in ancient written sources, and oral traditions -- not great flood stories, although that does happen, but a massive worldwide rain.
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