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Search Term	Definition
item	Searches for datafields containing the word "item".
"item"	Searches for datafields containing only the word "item" and nothing else.
!item	Searches for datafields that does not contain "item".
!"item"	Searches for datafields that contain anything other than just the word "item".
""	Searches for datafields that contain nothing. (empty)
!""	Searches for datafields that contain anything at all. (not empty)
a b	Searches for datafields containing both "a" and "b".
"a b" "c d"	Searches for datafields containing both the item "a b" and the item "c d".
a \|\| b	Searches for datafields containing either "a", or "b", or both.
>123	Searches for datafields containing a number greater than 123.
>=123	Searches for datafields containing a number greater than or equal to 123.
<123	Searches for datafields containing a number less than 123.
<=123	Searches for datafields containing a number less than or equal to 123.
>123 <456	Searches for datafields containing a number between 123 and 456.

MED-Ages

Collected_By:

Matched to mindat method:

NO_mindat_id:

ODR_DB:

ODR_Unique_id:

Reference:

TO-MED:

age_as_cited_in_ref:

age_interpret:

age_median_ma:

age_notes:

age_priority: -1 1 x

age_to_children:

age_to_elems:

age_to_geo_loc:

age_to_mins:

age_type: Mineral Age Locality/Deposit Age Mineralization Age Host Rock Age Disturbance Age Unspecified

age_type_notes:

dated_rock_name:

dated_rock_type:

dated_sample_of: Mineral Whole Rock Seperate Fossil Other

dating_method:

geo_loc:

grain/spot/fraction_id:

loc_name_in_ref:

loc_other_name:

max_age_ma:

med_age_id:

med_loc_id:

min_age_ma:

min_dated:

mindat_id:

modeled_age_err_ma:

modeled_age_ma:

ref_id:

rock_dated:

sample_lat_dec_deg:

sample_lat_deg:

sample_lat_hem: N S E

sample_lon_dec_deg:

sample_lon_hem: E W N

sample_num:

usgs_rec_id: