Introduction: I am beginning to collate the data I have collected over the past two weeks, as reported in earlier geology and science reports.

I have charted the geophysical data with descriptions of some of the locations where they were measured. I recorded readings here in the order I made them, not according to their positions on the map. Waypoint numbers correspond with my GPS readings and Crew 24's waypoint numbering system; those with no number are copied from another person's GPS unit. The waypoint numbers have no further significance.

Geophysics Maps of the MDRS Area (Click Image for Detailed View)

MDRS Radioactivity - Acquired February 2004 by Louise Wynn

MDRS Magnetic Susceptibility - Acquired February 2004 by Louise Wynn

Readings are as follows, all at UTM 12 S:

Wpt.	UTM Coordinates	Mag.	Rad.	Comments
41	4250767 N 0518144 E	N/A	N/A	HAB
42	4250855 N 0518286 E	82	0
43	4250667 N 0518446 E	50	0	At Juras.-Cretac. Boundary
44	4250632 N 0518537 E	4	0	White feldspar or plag.
45	4250655 N 0518661 E	0	0	"Martian mushrooms"
46	4250655 N 0518799 E	0	0
47	4250400 N 0519102 E	0	0
49	4250692 N 0528675 E	0	0
101	4250929 N 0518169 E	0	0	Sandy wash near HAB
---	4251750 N 0518595 E	55	0	ATV road
104	4253670 N 0518620 E	15	0	Streambed at ATV crsng.
107	4250320 N 0519090 E	0	0	Sedimentary layers
108	4250520 N 0521838 E	13	0	Red sandstone hill
111	4253736 N 0527894 E	7	0	Sed. wall at streambed
112	4253719 N 0517487 E	16	0	Purple mud sediment
113	4253716 N 0517492 E	0	0	Red mud face of strm wall
114	4253775 N 0517424 E	0	0	Orange hard sed. layer
115	4253834 N 0517424 E	0	0	Orange sed-conglom.
116	4253864 N 0517406 E	0	0	Near Gryphaea in stream
117	4253853 N 0517375 E	0	0	Black crumbly sediment
---	4253248 N 0516984 E	0	0	Brown mud
119	4254520 N 0516970 E	0	0	2.61 km from HAB
---	4250790 N 0518160 E	0	0	Weather station near HUB
---	4250876 N 0518219 E	0	0	Rebar Hill: Red mud
122	4250931 N 0518166 E	0	0
125	4252447 N 0514804 E	0	0.05	Black silt from bluffs
126	4252817 N 0515396 E	0	0.05	Stream bed below bluffs
127	4252841 N 0515658 E	0	0
128	4252841 N 0515658 E	0	0
130	4250767 N 0518144 E	0	0.02
131	4250611 N 0518178 E	0	0.04	(Same as Bob's # 137)
132	4250451 N 0518063 E	0	0.04
135	4250452 N 0518064 E	0	0.09
136	4250669 N 0518131 E	0	0.04
137	4249225 N 0515355 E	0	0.06
138	4249032 N 0515101 E	0	0.08
141	4251214 N 0515415 E	0	0.10	Black dirt cliff bottom
142	4251237 N 0515379 E	0	0.08	Brown-red sandstone cliff
143	4250942 N 0518125 E	0	0.08	Behind HAB to west
144	4250942 N 0518119 E	0	0.08	Just beyond # 143

Future Plans:

I will be conducting lab studies of the samples and then relating the geophysical and geochemical data with the geological descriptions of Crew 24's geologist Kyoichi Sasazawa and geologists from previous crews.

Acknowledgments:

Thanks to all the members of Crew 24 for accommodating me as we went on EVAs, stopping frequently and waiting for me to kneel in the red soil of Mars to take readings with my trusty scintillometer (measuring for radioactivity) and magnetic susceptibility meter (measuring for iron content).

Thanks to Crew 24 Commander Digby Tarvin for giving me so many opportunities to work on this project and encouraging me in every way.

Thanks to the members of the Remote Science Team for the support they have offered. I am looking forward to working with some of them to further our understanding of the geologic history of the area.

Thanks to Dr. Robert Zubrin and The Mars Society for giving me the chance to do this work.