 | Jillian Fiona Banfield is a geomicrobiologist and biogeochemist whose work focuses on the... more » |
 | James O. "Jim" Berkland is an American geologist studying earthquake prediction. He claims to... more » |
 | James Arthur "Jim" Gibbons is an American politician. He served as the 28th Governor of the U.S... more » |
 | Joachim Barrande was a French geologist and palaeontologist. Barrande was born at Saugues, Haute... more » |
 | Johan Aschehoug Kiær was a Norwegian paleontologist and geologist. He was born in Drammen as the... more » |
 | Johan Gadolin was a Finnish chemist, physicist and mineralogist. Gadolin discovered the chemical... more » |
 | Johan Georg Forchhammer was a Danish mineralogist and geologist. Forchhammer was born at Husum,... more » |
 | Johan Gottschalk Wallerius was a Swedish chemist and mineralogist. Wallerius was born in Stora... more » |
.jpg/220px-Professor_Johan_Gunnar_Andersson_in_1904_(cropped).jpg "Johan Gunnar Andersson") | Johan Gunnar Andersson, Swedish archaeologist, paleontologist and geologist, closely associated... more » |
 | Johann Jakob Nöggerath, German mineralogist and geologist, was born at Bonn. In 1814-1815 he... more » |
| Johannes Menge, was South Australia's first geologist, an early explorer of the new colony, and... more » |
| Johannes Herman Frederik Umbgrove Johannes Herman Frederik Umbgrove, called in short Jan Umbgrove, was a Dutch geologist and Earth... more » |
 | Johannes Iversen was a Danish palaeoecologist and plant ecologist. He was born in Sønderborg and... more » |
| John Arthur Phillips FRS, FCS was a British geologist, metallurgist, and mining engineer. more » |
| John Beaumont was an English physician and early geologist. more » |
| John Bicknell Auden was an English geologist and explorer, and an official with the World Health... more » |
 | John Bidwell was known throughout California and across the nation as an important pioneer,... more » |
 | John Birmingham was an Irish astronomer, amateur geologist, polymath and poet. He spent six or... more » |
.jpg/243px-MERRIAM,_JOHN_CAMPBELL_LCCN2016862039_(cropped).jpg "John Campbell Merriam") | John Campbell Merriam was an American paleontologist. The first vertebrate paleontologist on the... more » |
_(cropped).jpg/229px-John_Casper_Branner_(1850-1922)_(cropped).jpg "John Casper Branner") | John Casper Branner was an American geologist and academic who discovered bauxite in Arkansas in... more » |
 | John Conover Smock was an American geologist. Smock was born in Holmdel Township, New Jersey,... more » |
| John Dennant was an English-born educational administrator and geologist, president of the Royal... more » |
.png/181px-John_Duer_Irving_(1874–1918).png "John Duer Irving"){kind=spacer} | John Duer Irving was an American geologist. He was born in Madison, Wisconsin. He graduated from... more » |
| Sir John Evans, KCB, FRS was an English archaeologist and geologist. more » |
 | John Farnham Boynton was an early leader in the Latter Day Saint movement and an American... more » |
