water & the primordial earth
DESCRIPTION
Water & the Primordial Earth. Zircons 4.3 bya Early Faint Sun Paradox. Location Systems. Latitude & Longitude Grid of reference lines Cross at right angles. Latitude. Parallels Parallel to equator Latitudinal distances do not vary anywhere on Earth 1 º lat = 111.32 km = 60 nm - PowerPoint PPT PresentationTRANSCRIPT
Water & the Primordial Earth Zircons
4.3 bya
Early Faint Sun Paradox
Chapter 2
Chapter 2
Location Systems Latitude & Longitude
Grid of reference lines Cross at right angles
Chapter 2
Latitude
Parallels Parallel to equator Latitudinal distances do not
vary anywhere on Earth 1º lat = 111.32 km = 60 nm 1’ lat = 1 nm
Chapter 2
Longitude
Meridians 90º to lat lines Longitudinal distances vary
with distance from the equator At 0º lat, 1º long = 111.32 km At 30º lat, 1º long = 96.49 km At 60º lat, 1º long = 55.80 km At 90º lat, 1º long = 0 km
Chapter 2
