New evidence by geologists dates the closure of an ancient seaway at 13 to 15 million years ago and challenges accepted theories about the rise of the Isthmus of Panama and its impact on world climate and animal migrations.
Panama debate fueled by zircon dating
jueves, 9 de abril de 2015
Suscribirse a:
Enviar comentarios (Atom)
No hay comentarios:
Publicar un comentario