My take is that they are describing the appearance of that section of the core that contained massive sulphide, not the entire core.

Hole 5 however has 70 meters of massive sulphide

Hole 18 has 20.

Both holes, however, have massive sulphide, so these sections 'looked the same'

See below: 

Hole NOT-04-05, observed to be the most significant hole to date, was positioned 50 meters to the northeast of Holes NOT-07-01 and 02 and was drilled vertically at the peak of a magnetic anomaly to ascertain the magnetic body's more precise location. After 6 meters of overburden and one meter of limestone, peridotite with interstitial chalcopyrite, pyrrhotite and pentlandite was encountered to a core depth of 47.4 meters. Between 47.4 and 112.6 meters massive chalcopyrite, pyrrhotite and pentlandite was observed. Then from 112.6 to 123.3 meters peridotite with interstitial chalcopyrite and pyrrhotite was observed. Between 123.3 and 124.4 meters, another massive section of chalcopyrite, pyrrhotite and pentlandite was observed. The hole then remained in peridotite until 127.4 meters core length, then entered granodiorite until the end of the hole at 143.4 meters.

NOT-07-18 is also positioned at the same collar location as hole NOT-07-17 and NOT-07-16 undercutting the mineralization encountered in the two upper holes. The initial dip of this hole was set at -69 degrees. Between 105.2 meters and 132.5 meters the hole entered well mineralized peridotite, then it entered into a long section of net textured peridotite between 132.5 to 210m. From 210 to 230m massive sulphides were intersected before the hole encountered granodiorite.