"consist of a combination" is a grammatically correct and usable phrase in written English.
You can use it when you want to emphasize that something is composed of more than one element. For example: "This cake recipe consists of a combination of eggs, flour, sugar, and butter."
The advertisements consist of a combination of content and a link to the advertiser's webpage.
Most tracks consist of a combination of sand, silt and clay with varying percentages depending on location and weather patterns.
Entitlements may consist of a combination of family and individual rights as well.
Low permeability engineered landfill barriers often consist of a combination of geosynthetics and mineral layers.
The program will consist of a combination of a number of outstanding international invited speakers and proffered papers.
The redress package agreed with the FCA will consist of a combination of cash refunds and balance write downs.
The sale would consist of a combination of new shares sold by the club, based in Turin, and existing stock offered by current investors.
Government delegations consist of a combination one or more heads of copyright, patent, or trademark offices, representatives from U.N. missions, government ambassadors, diplomats, or other senior government officials.
The legal philosophy of a particular legal scholar may consist of a combination of strains from many schools of legal thought.
Democrats instead argue that the down payment should consist of a combination of tax increases and cuts to programs outside Medicare, Medicaid and Social Security, like farm programs.
Dr. Wolff said treatments for patients like Mr. Snow might consist of a combination of drugs, including standard chemotherapy, adding newer biologic agents, localized liver treatments and more liver surgery.
