| Matthew d'Alessio | US Geological Survey |
| Steven D'Hondt | University of Rhode Island |
| Ashley da Silva | |
| Ofer Dahan | Ben Gurion University |
| Svein Olaf Dahl | University of Bergen |
| Jason Dahl | Bemidji State University |
| Robyn Dahl | Oberlin College |
| Thomas Daigle | |
| Joshua Dailey | |
| Lina Dailide | Federal Agency |
| Laura Dair | |
| Michael Dale | New Mexico Environmental Dept |
| Barbara Dalgish | University of California |
| Kurt Dalman | Washington State University |
| Bob Dalrymple | Queen's University |
| Ashley Dalrymple | Brigham Young University |
| Kristen Daly | National Science Foundation |
| Trevor Daly | Hope College |
| William Damery | Utah Division of Water Quality |
| Anne Dangerfield | Brigham Young University |
| Christopher Daniel | Bucknell University |
| Julia Danz | Beloit College |
| Brian Darby | Louisiana State University |
| Elaine Darby | The University of Texas |
| Soumya Das | |
| Reshmi Das | Florida State University |
| Nicholas Davatzes | U.S. Geological Survey |
| Esponda David | Servicio Geológico Mexicano |
| Cameron Davidson | Carleton College |
| Donald Davidson | |
| Gregg Davidson | University of Mississippi |
| Jane Davidson | University of Nevada |
| Gareth Davies | Cambrian Ground Water Co. |
| Caroline Davies | Univ Missouri-Kansas City |
| Sarah Davies | University of Leicester |
| Katherine Davies-Vollum | University of Washington-Tacoma |
| J. Davis | Univ New Hampshire |
| Jesse Davis | University of North Carolina |
| James Davis | US Geological Survey |
| Larry Davis | Saint Johns University |
| P. Davis | Bentley College |
| Jena Davis | BYU-Idaho Geology |
| Christopher Davis | Westminster College |
| Nicole Davis | University of Cincinnati |
| Allicia Davis | Indiana University |
| Renee Davis | Old Dominion University |
| Loren Davis | Oregon State University |
| Andrew Davis | Cameca |
| Edward Davis | University of California |
| Ralph Davis | University of Arkansas |
| Clayton Davis | University of Arkansas |
| Gregory Davis | Univ Southern California |
| R. Davis | University of New Haven |
| Richard Davis | College of Mount Saint Joseph |
| Frederick Davis | University of Missouri |
| Craig Davis | Wright State University |
| James Davis | California Division Mines & Geology |
| Linda Davis | US Geological Survey |
| Vladimir Davydov | Boise State University |
| Nancye Dawers | Tulane University |
| Ralph Dawes | Wenatchee Valley College |
| James Dawson | State University of New York |
| Shelby Dawson | Cal State Univ Northridge |
| Stephanie Day | |
| James Day | Illinois State University |
| Don De Blieux | Utah Geological Survey |
| Eric De Carlo | University of Hawaii |
| Vionette De Choudens | University of Kansas |
| Lynn De Freitas | FRIENDS of Great Salt Lake |
| Johan De Grave | University of Gent |
| Bradley De Gregorio | Arizona State University |
| Laura De Grey | Idaho State University |
| Rene De Hon | University of Louisiana |
| Ghislain de Joussineau | Stanford University |
| Victor De La Garza | Servicios Industriales Penoles SA DE CV |
| Ellen De Man | Syracuse University |
| Nicola De Paola | |
| Shanaka de Silva | University of North Dakota |
| Carol de Wet | Franklin & Marshall College |
| Walter Dean | US Geological Survey |
| Michael DeAngelis | University of Wisconsin |
| Elyse Dearden | Snow College Geology |
| Peter DeCelles | University of Arizona |
| Gordon Dechman | |
| Carol Deering | SAIC/USGS/EROS |
| Chad Deering | |
| Barbara DeFelice | Dartmouth College |
| Joshua DeFrates | University of Illinois |
| Jerome DeGraff | USDA Forest Service |
| Carol Dehler | Utah State Univ |
| Jack Deibert | Peay State University |
| Benjamin Dejong | |
| John Delaney | University of Washington |
| Michael Delaney | Bucknell University |
| JOSE ANTONIO DELAORDEN | IGME |
| Amelia DeLaPaz | |
| simon delattre | ENS/ Paris VI |
| John DeLaughter | EarthScope |
| Geoffrey Delin | US Geological Survey |
| Bradley Deline | University of Cincinnati |
| Judith Delius | University of Utah |
| Jennifer DeLoge | GVSU |
| Stephen DeLong | University of Arizona |
| Gregory Delory | University of California |
| John Dembosky | Methodist College |
| Robert Dembowski | University of Arizona |
| Thomas Demchuk | ConocoPhillips, Inc |
| Robert Demicco | Binghamton University |
| Timothy Demko | University of Minnesota |
| David Demmer | University of Minnesota-Duluth |
| Michael Dempsey | |
| Tom Dempster | Utah Geological Survey |
| Lori Dengler | Humboldt State University |
| Carlos Dengo | ExxonMobil Exploration Company |
| Carly Denlinger | |
| Kevin Dennehy | U.S. Geological Survey |
| John Dennis | University of Arkansas |
| Allen Dennis | University of South Carolina |
| John Dennison | University of North Carolina |
| Aaron DeNosaquo | |
| Mathew Densmore | |
| Alexander Denton | Real Resources |
| Julett Denton | U.S. Forest Service |
| Milind Deo | University of Utah |
| Meagan DeRaps | Montana State University |
| Terry Derchia | U.S. Geological Survey |
| John-Paul Derochie | University of Calgary |
| Sarah Derouin | University of Cincinnati |
| Catherine Dertz | Illinois State University |
| David Des Marais | Ames Research Center |
| Michael DeSantis | University of Cincinnati |
| Stephanie DeSisto | State University of New York Cortland |
| David Desjardins | Bates College |
| David Dethier | Geosciences, Williams College |
| Matthew Dettinger | Carleton College |
| David Dettman | University of Arizona |
| Alexander Deutsch | University of Muenster |
| Kathleen Devaney | El Paso Community College |
| Duane DeVecchio | University of California |
| Melanie DeVore | Georgia College & State University |
| John Dewey | University of California |
| Ed DeWitt | US Geological Survey |
| Victor DeWolfe | Colorado School of Mines |
| Troy Dexter | |
| William Dey | Illinois State Geological Survey |
| Susan DeYoung | University of Nevada Reno |
| Ernesto Diaz | US GeologicalSurvey |
| Kira Tushman | |
| Casey Dick | Western State College |
| Robert Dickerson | S.M. Stoller Corp. |
| Tammy Dickinson | The National Academies |
| William Dickinson | University of Arizona |
| Marni Dickson | Indiana Geological Survey |
| Brad Didericksen | |
| Richard Diecchio | George Mason University |
| Sharon Diehl | U.S.Geological Survey |
| John Diemer | University of North Carolina |
| Gregory Dietl | Yale University |
| Andreas Dietrich | Colorado School of Mines |
| Robert Diffendal | Nebraska Geological Survey |
| Rose Difley | Brigham Young University |
| Yildirim Dilek | Miami University |
| Christopher DiLeonardo | Foothill College |
| John Dilles | Oregon State University |
| Kelly Dilliard | Washington State University |
| Manetta Dillingham | Austin State University |
| William DiMichele | Smithsonian Institution |
| Bill Dinklage | Utah Valley State College |
| John Dinsmoor | Los Alamos National Laboratory |
| David Dinter | University of Utah |
| David Diodato | US Nuclear Waste Technical Rev |
| Dona Dirlam | Geomological Institute of America |
| John Dixon | University of Arkansas |
| Janet Dixon | University of of Arkansas Libraries |
| Patrick Dobson | Lawrence Berkeley National Lab |
| Leif Dobszinsky | PLU |
| Justin Dodd | University of Saskatchewan |
| Keith Dodson | Brooks/Cole, Thomson |
| Amalia Doebbert | |
| James Doerner | University of Northern Colorado |
| Erica Doerr | St Louis Community College |
| Toby Dogwiler | Winona State University |
| John Dohrenwend | Southwest Satellite Imaging |
| Adrian Doiciulescu | Brigham Young University |
| Kirk Domke | University of Southern California |
| Rona Donahoe | University of Alabama |
| J. Donaldson | Carleton University |
| Mary Donato | US Geological Survey |
| Lin Dong | Virginia Technical University |
| Julie Donnelly-Nolan | US Geological Survey |
| Linda Donohoo-Hurley | University of New Mexico |
| Arthur Donovan | BP |
| David Donovan | Southern Nevada Water Authority |
| Stephen Donovan | Nationaal Natuurhistorisch Museum |
| Joseph Donovan | West Virginia University |
| Peter Doran | University of Illinois |
| Stephen Dornbos | University of Wisconsin |
| Joachim Dorsch | St. Louis Community College |
| Rebecca Dorsey | University of Oregon |
| Paul Doss | University of Southern Indiana |
| Whitney Doss | |
| Robert Dott | University of Wisconsin |
| Sandi Doughton | The Seattle Times |
| John Dow | SEG |
| Robert Downs | University of Arizona |
| Mary Dowse | Western New Mexico University |
| Briget Doyle | College of Charleston |
| Jessica Doyle | University of Nevada |
| Andrew Drabick | Idaho State University |
| William Drake | Northern Arizona University |
| Peter Drakos | University of Nevada |
| Sarah Draper | Utah State University |
| P. Dresel | Pacific Northwest National Lab |
| Steven Driese | Baylor Universityersity |
| Weston Dripps | Furman University |
| Fletcher Driscoll | Fletcher Dricoll & Associates |
| John Drobnyk | SCSU (Emeritus) |
| Mary Droser | University of California |
| Carl Drummond | Indiana University / Purdue University |
| Peter Druschke | University of Nevada Las Vegas |
| Peter Drzewiecki | Eastern Connecticut State University |
| Edward du Bray | US Geological Survey |
| Mihai Ducea | University of Arizona |
| Harvey DuChene | HNK Energy LLC |
| Stephanie Dudash | US Geological Survey |
| Thomas Duffy | Princeton University |
| Christopher Duffy | Penn State Univ |
| Murray Duke | Geological Survey of Canada |
| Genet Duke | |
| Geoffrey Duller | University of Wales |
| Stan Dunagan | University of Tennessee |
| Nelia Dunbar | N.M. Bureau of Geology / N.M. Tech |
| Ian Duncan | UT Bureau of Economic Geology |
| Mack Duncan | J M Huber Corporation |
| Alec Duncan | University of Alaska |
| Jonathan Duncan | CUAHSI |
| Colin Dundas | University of Arizona |
| Darrell Dunn | Southwest Research Institute |
| Regan Dunn | John Day Fossil Beds NM |
| Jeffrey Dunn | MWH Americas, Inc |
| Dean Dunn | ACS Petroleum Research Fund |
| David Dunn | |
| Richard Dunn | Norwich University |
| Lisa Dunn | Colorado School of Mines, Libr |
| William Dunne | University of Tennessee |
| Michael Durcanin | Rutgers University |
| Christopher DuRoss | Utah Geological Survey |
| Cynthia Dusel-Bacon | US Geological Survey |
| Steven Dutch | University of Wisconsin |
| Russell Dutcher | Southern Illinois University |
| Linda Dutcher | |
| Jim Dutkiewicz | Meiji Techno America |
| John Dutro | US Geological Survey |
| Barbara Dutrow | Louisiana State University |
| Shirley Dutton | University of Texas |
| Alan Dutton | University of Texas |
| Steve Dworkin | Baylor Universityersity |
| Robert Dymek | Washington University |
| Mark Dyson | Carleton College |
