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Phosphate minerals in ordinary chondrites provide a record of fluids that were present during metamorphic heating of the chondrite parent asteroids. We have carried out a petrographic study of the phosphate minerals, merrillite and apatite, in metamorphosed H group ordinary chondrites of petrologic type 4-6, to understand development of phosphate minerals and associated fluid evolution during metamorphism. In unbrecciated chondrites, apatite is Cl rich and shows textural evolution from fine-grained apatite-merrillite assemblages in type 4 toward larger, uniform grains in type 6. The Cl/F ratio in apatite shows a similar degree of heterogeneity in all petrologic types, and no systematic change in compositions with metamorphic grade, which suggests that compositions in each meteorite are dictated by localized conditions, possibly because of a limited fluid/rock ratio. The development of phosphate minerals in H chondrites is similar to that of L and LL chondrites, despite the fact that feldspar equilibration resulting from albitization is complete in H4 chondrites but not in L4 or LL4 chondrites. This suggests that albitization took place during an earlier period of the metamorphic history than that recorded by preserved apatite compositions, and chemical equilibrium was not achieved throughout the H chondrite parent body or bodies during the late stages of metamorphism. A relict igneous clast in the H5 chondrite, Oro Grande has apatite rims on relict phenocrysts of (possibly) diopside that have equilibrated with the host chondrite. Apatite in the Zag H3-6 regolith breccia records a complex fluid history, which is likely related to the presence of halite in this meteorite. The porous dark H4 matrix of Zag, where halite is observed, has a high apatite/merrillite ratio, and apatite is extremely Cl rich. One light H6 clast contains similarly Cl-rich apatite. In a second light H6 clast, apatite compositions are very heterogeneous and more F-rich. Apatites in both H4 matrix and H6 clasts have very low H2O contents. Heterogeneous apatite compositions in Zag record multiple stages of regolith processing and shock at the surface of the H chondrite parent body, and apatite records either the passage of fluids of variable compositions resulting from different impact-related processes, or the passage of a single fluid whose composition evolved as it interacted with the chondrite regolith. Unraveling the history of apatite can potentially help to interpret the internal structure of chondrite parent bodies, with implications for physical and mechanical properties of chondritic asteroids. The behavior of halogens recorded by apatite is important for understanding the behavior of volatile elements in general: if impact-melt materials close to the surface of a chondritic asteroid are readily degassed, the volatile inventories of terrestrial planets could be considerably more depleted than the CI carbonaceous chondrite abundances that are commonly assumed.

Richardton-Taylor 58, Hettinger 48 Mott-Regent 43, [Hazen] 41 Mott-Regent 72, Richardton-Taylor 59

Fargo South topped Devils Lake 85-81 on Feb. 10, ending the Firebirds' perfect season. Devils Lake is still holding on to the No. 1 rank with five votes, while Minot got one vote. Both Devils Lake and Minot now hold a 17-1 record.

Receiving votes:Bismarck State (16-17), Black Hawk (20-12), Brown Mackie (11-19), Chandler-Gilbert (10-18), Rhode Island (21-12), Cuyahoga CC (20-7), Iowa Lakes CC (21-10), Kalamazoo Valley (21-9), Lackawanna (22-9), Lincoln (26-7), North Arkansas (21-9), Oakton CC (15-15), Prince George's CC (23-8), Rockingham CC (16-14), St. Louis CC (21-11).

Receiving votes:Bismarck State (16-17), Black Hawk (20-12), Brown Mackie (11-19), Chandler-Gilbert (10-18), Rhode Island (21-12), Cuyahoga CC (20-7), Iowa Lakes CC (21-10), Kalamazoo Valley (21-9), Lackawanna (22-9), Lincoln (26-7), North Arkansas (21-9), Oakton CC (15-15), Prince George's CC (23-8), Rockingham CC (16-14), St. Louis CC (21-11).

[Roy, Richardton] - John Schubert, 78, Richardton, died Feb. 23, 2008, at Medcenter One, Bismarck. Services will be held at 10 a.m.

RICHARDTON- Alex J.

3-pointers: DSU10 ([Teryl Norton] 3, Boedeker 3, Vanderpan 2, Marqurez 2), GF 8 (Holmlund 2, Gentry 2, Jorgenson 1, Briese 1, Francis 1, Saunders 1). Rebounds: DSU28 (Norton 4), GF 33 (Moore 8). Fouls: DSU10, GF10. Fouled out: None. Assists: DSU ([Kelsey Boedeker] 7), GF 21 (Briese 3). Turnovers: DSU19, GF 19. 3-pointers: TMC 4 (Lambert 3, Langen 1), BSC12 (Taken Alive 3, Sturlaugson 3, Pourier 2, [Lisa Bear Robe] 2, Lauf 1, Clarke 1). Rebounds: TMC42 (Langen 6), BSC64 ([Marisa Rauhauser] 12). Fouls: TMC 11, BSC 14. Fouled out: None. Assists: TMC 9 (6), BSC36 (Taken Alive 9). Turnovers: TMC 26, BSC 16.

3-pointers: CC 9 ([Curtis Malone] 3, Hayden 2, Ridgeway 1, Banks 1, Porter 1, [Kelly Pankratz] 1), WSC 14 (Martinez 4, Chapman 3, [Neil Packineau] 2, Jgernaia 2, [Nathaniel Packineau], Beaun 1). Rebounds: CC 49 ([Daniel Armah] 10), WSC 44 ([Luke Martinez] 5). Fouls: CC 30, WSC 24. Fouled out: CC Kelly, Assists: CC 10 (Banks 2), WSC 17 (Chapman 5). Turnovers: CC 21, WSC 13. 3-pointers: DSU10 ([Teryl Norton] 3, Boedeker 3, Vanderpan 2, Marqurez 2), GF 8 (Holmlund 2, Gentry 2, Jorgenson 1, Briese 1, Francis 1, Saunders 1). Rebounds: DSU28 (Norton 4), GF 33 (Moore 8). Fouls: DSU10, GF10. Fouled out: None. Assists: DSU ([Kelsey Boedeker] 7), GF 21 (Briese 3). Turnovers: DSU19, GF 19. 3-pointers: TMC 4 (Lambert 3, Langen 1), BSC12 (Taken Alive 3, Sturlaugson 3, Pourier 2, [Lisa Bear Robe] 2, Lauf 1, Clarke 1). Rebounds: TMC42 (Langen 6), BSC64 ([Marisa Rauhauser] 12). Fouls: TMC 11, BSC 14. Fouled out: None. Assists: TMC 9 (6), BSC36 (Taken Alive 9). Turnovers: TMC 26, BSC 16.

Fargo South30, Minot 0 Watford City 21, Fargo Oak Grove 0 Linton-HMB 14, Lisbon 0