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In Memoriam


            The Society notes with regret the deaths of the following members (notifications received 30 April–31 July 2019). Memorials to deceased
          members are published open access at www.geosociety.org/memorials Visit that page to learn about how to honor someone with a memorial.


          Sam L. Agron              Eugene E. Brucker          Marvin L. Ivey            Jeremy P. Richards
          Verona, New Jersey, USA   St. Louis, Missouri, USA   Largo, Florida, USA       Sudberry, Ontario, Canada
          Date of death: 12 Aug. 2018  Date of death: 10 May 2019  Date of death: 5 Apr. 2019  Date of death: 7 June 2019

          Sam Boggs Jr.             Jean F. Demouthe           Alfred Kroener            Henry R. Schmoll
          Eugene, Oregon, USA       San Francisco, California, USA  Mainz, Germany       Denver, Colorado, USA
          Date notified: 21 June 2019  Date of death: 20 Oct. 2018  Date of death: 22 May 2019  Date of death: 5 Dec. 2018

          Samuel A. Bowring         T. Randolph Gray Sr.       David B. MacKenzie        Robert E. Sloan
          Cambridge, Massachusetts,   Birmingham, Alabama, USA  Denver, Colorado, USA    Winona, Minnesota, USA
          USA                       Date notified: 5 May 2019  Date of death: 13 May 2019  Date of death: 17 June 2019
          Date of death: 17 July 2019
                                    Sherman Gromme             Glenn M. Mason            Jerry D. Vineyard
          Willi K. Braun            Palo Alto, California, USA  New Albany, Indiana, USA  Ozark, Missouri, USA
          Warman, Saskatchewan,     Date of death: 8 Aug. 2018  Date of death: 7 Nov. 2018  Date notified: 15 May 2019
          Canada
          Date of death: 1 Jan. 2019  Gregg F. Gunnell         Lucian B. Platt           Rolf E. Westgard
                                    Durham, North Carolina, USA  Gladwyne, Pennsylvania, USA  Saint Paul, Minnesota, USA
          Severn P. Brown           Date of death: 20 Sept. 2017  Date of death: 1 Jan. 2019  Date of death: 20 May 2019
          Canton, New York, USA
          Date of death: 4 May 2019



                                                    2020
              GSA PUBLICATIONS                                         AUGUST 2019      VOL. 47 NO. 8  ISSN 0091-7613   AUGUST 2019     VOL. 47  NO. 8     P. 689–800
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                                                                                                ISSN 0016-7606  VOL. 131  NO. 11/12VOL. 131  NO. 11/12VOL. 131  NO. 11/12  NOVEMBER/DECEMBER 2019
                                                                                                ISSN 0016-7606
                                                                                                       NOVEMBER/DECEMBER 2019
                                                                                                       NOVEMBER/DECEMBER 2019
                                                                                                ISSN 0016-7606
              Geology continues its reign as   Geosphere, reaching 2.847.                THE  GEOLOGICAL  SOCIETY  OF  AMERICA  BULLETIN, VOLUME  131,  NO.  11/12,  P.  1761–2112
              the Journal Citation Reports’   The five-year impact factor
              #1 ranked geology journal for   also increased to 2.989.
              the thirteenth year in a row.
              According to Clarivate Analytics   The impact factor for  } rock.geosociety.org/store
                                                        BUY ONLINE
                                                        toll‑free 1.888.443.4472 | +1.303.357.1000, option 3 | gsaservice@geosociety.org
              (Web of Science Group, 2019),   Lithosphere was 2.486, with
              it had a 2019 impact factor of   a five-year impact factor                 NOVEMBER/DECEMBER 2019
              5.006 and a five-year impact   of 2.961.
              factor of 5.406.            While Clarivate Analytics does
              The Geological Society of   not produce impact factors for
              America Bulletin’s impact   book series, it indexes GSA’s
              factor was 3.970, with a five-  Special Papers, Memoirs,                             ISSN 1941-8264  |   VOLUME 11  |   NUMBER 4  |   AUGUST 2019
              year impact factor of 4.708.   and Reviews in Engineering
              Bulletin ranks #27 among    Geology in its Book Citation
              multidisciplinary geoscience   Index, which is part of the
              journals.                   Web of Science.
              For the fourth year running,   Explore GSA’s journals and
              the impact factor soared for   books at www.gsapubs.org.
                                                                                                   Fresh look at an old turtle in Death Valley 436
                                                                                                      Detached in South Tibet 465
                                                                                                    A tale of trans-American zircons 581

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