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Magnetic Anomalies Off the Coast of the Pacific Northwest |
| Map of the magnetic anomalies located off of the coast of the Pacific Northwest region of the U.S. Color coded magnetic stripes indicate the age of the seafloor, with the oldest material located the farthest from the Juan de Fuca ridge. The thick dashed lines refer to the Juan de Fuc ... |
| Data Types: diagram, map |
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Pliocene Paleogeographic Map |
| The global paleogeographic reconstruction for the Paleocene has been prepared by Balukhovsky et al. (2004). This map was constructed using the techniques involved in producing the Paleozoic and Mesozoic-Cenozoic Atlases of Lithological-Paleogeographic Maps of the World (Ronov et al., 1984 ... |
| Data Types: map |
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Magnetic Reversal Data and Timescale |
| The figure represents magnetic data taken from multiple locations around the world. It shows whether or not the samples were formed during a time that had a normal or reversed magnetic field. Each dot represents a different rock sample, which were then used to determine when the magnetic fiel ... |
| Data Types: diagram |
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Direction of Changing Magnetic Poles based on Basalt Samples in Japan |
| The figure shows the varying directions the magnetic pole has taken based on basalt samples in Japan. The samples span over a time period that begins in the early Quaternary and ends in the Tertiary. Using the locations on the graph and their respective time periods, it can be seen that th ... |
| Data Types: diagram, graphs |
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Illustration of a Geomagnetic-Polarity Timescale |
| This image displays geomagnetic-polarity epochs and their correlation to an age in millions of years and a specific magnetic anomaly. The age of the seafloor is based on K-Ar dating. Blue anomalies represent normal magnetic polarities and red anomalies are reversed magnetic polarities. |
| Data Types: diagram |
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40Ar/39Ar Age Determination 07C2033 (KOP000055 - Combe, Samoa) |
| This upload contains the 40Ar/39Ar geochronology age determination of sample COM-2 4D11-06 (ALIA 123-02) from Combe, Samoa and was calculated using the ArArCALC freeware. The preferred age of 11.12 ± 0.06 Ma is the age plateau and is interpreted as the eruption age of the sample. A good ag ... |
| Data Types: spreadsheet |
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