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Diolch yn fawr Eurwyn!! Dyna her!!
Mae GyA yn cynnig Plān hollti ar gyfer ‘cleavage plane’ felly heblaw fod gan rhywun arall gynnig gwell, rwy’n mynd i ddefnyddio fy nghynnig gwreiddiol.
Diolch
Bet
From: Discussion of Welsh language technical terminology and vocabulary
[mailto:[log in to unmask]] On Behalf Of Eurwyn Pierce Jones
Sent: 11 October 2016 10:07
To: [log in to unmask]
Subject: Re: Slaty cleavage plane
Does gen i fy hun ddim ateb hyd yn hyn; ond dyma ddisgrifiad ar Wikipedia, dan 'Foliated Textures of Metamorphic Rock':
Slaty Cleavage -
a pervasive, parallel foliation (layering) of fine-grained platy minerals (chlorite) in a direction perpendicular to the direction of maximum stress. Produces the rocks slate and phyllite.
Pob hwyl i chi ar geisio dweud hynny yn y Gymraeg - mewn TRI gair!
Eurwyn.
From: Discussion of Welsh language technical terminology and vocabulary
[mailto:[log in to unmask]]
On Behalf Of Bet Eldred
Sent: 11 October 2016 08:17
To: [log in to unmask]
Subject: Slaty cleavage plane
http://csmres.jmu.edu/geollab/Fichter/MetaRx/Images/titlfoliated.gif
Bore da bawb
Ai ‘Plān hollti llechog’ ydy hwn?
Diolch ymlaen llaw
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