Adam Sedgwick,British geologist
Numéro d’image : 11830889
| Adam Sedgwick (1785-1873),British geologist,aged 47. After graduating in mathematics in 1808,he remained at Cambridge for the rest of his life,being appointed professor of geology in 1818. In 1835 he worked out the stratigraphic succession of fossil-bearing rocks in North Wales,naming the oldest of them the Cambrian period (now dated at 500-570 million years ago). In South Wales his friend Murchison had simultaneously worked out the Silurian system,some strata of which overlapped with Sedwick's Cambrian system. The celebrated dispute which followed was only resolved in 1879 when C. Lapworth proposed that the Upper Cambrian and Lower Silurian be renamed the Ordovician | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library |
| Taille de l’image : | 3262 px × 4724 px |
| Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
| Property Release : | Non requis |
| Restrictions : | - |
Prix pour cette image À partir de 45 €
Produit vendu
(Calendrier, Carte postale, Carte de vœux, Impression sur textile, Packaging etc)
À partir de 45 €
Usage commercial
(Affichage, Annonce presse, Annonce TV, Carte, Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 45 €
Éditorial
(Digital, Journal, Livre, Livre pratique, Magazine, Télévision etc)
À partir de 60 €
Usage non-commercial
(Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 120 €