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Broecker, Wally

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Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 195–196.
...Wally Broecker © 2018 European Association of Geochemistry, EAG. All rights reserved. 2018 European Association of Geochemistry ...
Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 117.
...Wally Broecker As we struggle to cope with the ongoing buildup of CO 2 produced by burning fossil fuels, can we acquire guidance from the geologic record? Although our ability to reconstruct past atmospheric CO 2 content reliably is currently confined to the last 800 thousand years, we do have...
Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 189.
...Wally Broecker © 2018 European Association of Geochemistry, EAG. All rights reserved. 2018 European Association of Geochemistry The geologic record makes a strong case that CO 2 has been instrumental in driving past climate changes. But as made clear by the record for the last 150 kyr...
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Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 118–124.
...Wally Broecker Before delving into the evidence documenting these changes, it is important to understand the control system which regulates the atmosphere’s CO 2 and H 2 O contents. The situation for water vapour is straight forward as it depends mainly on the temperature of the surface ocean...
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Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 182–188.
...Wally Broecker Although our ability to predict the rate at which sea level will rise remains inadequate, we do have indications that if we don’t remove this excess CO 2 from the atmosphere, on the time scale of a century or two, a several metre rise could occur. One is that during the last...
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Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 125–129.
...Wally Broecker It was the University of Chicago’s Robert Clayton who first showed that there were deviations from mass dependence. He measured both the 18 O to 16 O ratio and the 17 O to 16 O ratio in silicate-bound oxygen from meteorites. To his surprise, the 17 O/ 16 O results deviated...
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Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 142–153.
...Wally Broecker About 100 million years ago the breakup of a super continent centred over the South Pole initiated the northward drift of Africa, Australia and India (see Fig. 4.1 ). Of particular interest is India for its drift was terminated by a head-on collision with Asia...
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Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 154–166.
...Wally Broecker © 2018 European Association of Geochemistry, EAG. All rights reserved. 2018 European Association of Geochemistry It was, however, the carbon isotope record that came as the biggest surprise. The δ 13 C for both the upper and the deep Southern Ocean plunged by about 2.6...
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Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 130–141.
...Wally Broecker During quiet intervals, 13 C to 12 C ratios in limestone are confined to what might be referred to as the expected range. Based on measurements on diamonds, carbonatites and CO 2 trapped in ridge-crest basalts, the consensus is that mantle carbon has a δ 13 C averaging about −5...
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Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 167–181.
...Wally Broecker The Denton group also established that the rapid demise of New Zealand’s mountain glaciers, which commenced 18 kyr ago, broadly paralleled the rise in atmospheric CO 2 content (see Fig. 6.5 ). I say, ‘broadly’ because both the rate of retreat of the glaciers and the rate of rise...
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Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): III–IV.
...Wally Broecker Recently someone told me that if I had learned to type and to use a computer, I could have accomplished ever so much more. Perhaps, but I’m not convinced. As it turns out, with my pencil and eraser, I can keep up with my thinking. Also, my myriad of hand-plotted graphs has allowed...
Journal Article
Published: 01 April 2012
Geochemical Perspectives (2012) 1 (2): 221.
...Wally Broecker Abstract This manuscript presents the development of our current understanding of how the oceans operate and how past climates are reconstructed from the personal viewpoint of the author. It begins with the application of radiocarbon dating of carbonate rocks to deduce past climatic...
Journal Article
Published: 01 April 2012
Geochemical Perspectives (2012) 1 (2): 222.
...Wally Broecker I confine this summary to my life as a scientist. Of course, the things I discuss here were intertwined with my home life. I helped to raise 6 children and now have 7 grandchildren and 5 great grandchildren. I say “helped” because the giant share of the effort was that of my late...
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Journal Article
Published: 01 April 2012
Geochemical Perspectives (2012) 1 (2): 223–226.
...Wally Broecker My first plane trip was quite eventful. It left from Chicago’s Midway Airport headed for New York’s La Guardia. En route, we encountered severe turbulence which caught the stewardess by surprise. The plane dropped leaving a tray of coffee in paper cups momentarily suspended in mid...
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Journal Article
Published: 01 April 2012
Geochemical Perspectives (2012) 1 (2): 227–230.
...Wally Broecker Copyright 2012 European Association of Geochemistry, EAG. All rights reserved. 2012 In spite of these precautions, some additional “background” events not attributable to radiocarbon were recorded. These were corrected for by shifting the cylinders back and forth so that part...
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Journal Article
Published: 01 April 2012
Geochemical Perspectives (2012) 1 (2): 231–234.
...Wally Broecker Phil’s primary interest in this cave was its archaeological record. It had been occupied by palaeo Indians on and off for at least 8,000 years. I obtained a 14 C date of 7830 ± 350 years on fragments of netting from the lowest habitation level ( Broecker and Orr, 1958 ; Broecker...
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Journal Article
Published: 01 April 2012
Geochemical Perspectives (2012) 1 (2): 235–236.
...Wally Broecker During my first year at Lamont, Professor Kulp got the idea that we should see if we could detect one of the A bomb fission products that remained airborne instead of being purged by rainfall. In particular, he focused on an isotope of the inert gas krypton, 85 Kr, with a half...
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Journal Article
Published: 01 April 2012
Geochemical Perspectives (2012) 1 (2): 237–240.
...Wally Broecker Copyright 2012 European Association of Geochemistry, EAG. All rights reserved. 2012 One of the research projects that was being conducted by Kulp involved measuring the amount of radiocarbon in the dissolved inorganic carbon (CO 2 + HCO 3 − + CO 3 2− ) contained...
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Journal Article
Published: 01 April 2012
Geochemical Perspectives (2012) 1 (2): 241–243.
...Wally Broecker Copyright 2012 European Association of Geochemistry, EAG. All rights reserved. 2012 I remember when Andre Berger, in a Lamont seminar, presented a model study in which he claimed to have solved the problem. When questioned as to how it was that his model so nicely produced...
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Journal Article
Published: 01 April 2012
Geochemical Perspectives (2012) 1 (2): 244–248.
...Wally Broecker Copyright 2012 European Association of Geochemistry, EAG. All rights reserved. 2012 I received my PhD degree from Columbia in 1958. Unlike several of Maurice Ewing’s geophysicists, who put in 5 to 10 years on the Lamont research staff before being offered a faculty position...
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